do i write out numbers in an essay

When to Spell Out Numbers in Writing: Guide and Examples

#scribendiinc

The Rules for Writing Numbers in English 

You may have noticed a theme when it comes to the English language: most rules are not standardized. This (somewhat frustrating) fact is especially true when it comes to spelling out numbers. Should you write them out in words or leave them as numerals? To write numbers properly, you will also need to identify potential differences between major style guides (such as MLA , APA , and Chicago , to name a few) because these guides often outline different rules for using numbers in writing.

To make it easier, let's use an example. Say you're working on a paper evaluating the importance of the local public library in your community. The document will make use of small numbers, large numbers, decades, and statistics. Each type of number may follow a different rule.

Thankfully, when using numbers in writing, you can count on a few conventions that apply to most situations; just be sure to consult your specific style guide if one has been assigned. If you don't have time to review each number yourself, a professional editor or proofreader can ensure that your numbers are written correctly.

Writing Small and Large Numbers

A simple rule for using numbers in writing is that small numbers ranging from one to ten (or one to nine, depending on the style guide) should generally be spelled out. Larger numbers (i.e., above ten) are written as numerals.

For example, instead of writing "It cost ten-thousand four-hundred and sixteen dollars to renovate the local library," you would write, "It cost $10,416 to renovate the local library."

The reason for this is relatively intuitive. Writing out large numbers not only wastes space but could also be a major distraction to your readers.

Beginning a Sentence with a Number

Here is a rule that you can truly rely on: always spell out numbers when they begin a sentence, no matter how large or small they may be.

Incorrect: 15 new fiction novels were on display.

Correct: Fifteen new fiction novels were on display.

If the number is large and you want to avoid writing it all out, rearrange the sentence so that the number no longer comes first.

Revised: There were 15 new fiction novels on display.

Whole Numbers vs. Decimals

Another important factor to consider is whether you are working with a whole number or a decimal. Decimals are always written as numerals for clarity and accuracy.

To revisit our library example, perhaps circulation statistics improved in 2015. If a number falls in the range of one to ten and is not a whole number, it should be written as a numeral.

Incorrect: The circulation of library materials increased by four point five percent in 2015.

Correct: The circulation of library materials increased by 4.5% in 2015.

Paired Numbers (Two Numbers in a Row)

When two numbers come next to each other in a sentence, be sure to spell out one of these numbers. The main purpose of this rule is to avoid confusing the reader.

Incorrect: There were 12 4-year-old children waiting for the librarian to begin story time.

Correct: There were 12 four-year-old children waiting for the librarian to begin story time.

Correct: There were twelve 4-year-old children waiting for the librarian to begin story time.

Decades and Centuries

Decades or centuries are usually spelled out, especially if the writing is formal.

Incorrect: The library was built in the '50s.

Correct: The library was built in the fifties.

If you are referring to a specific year (e.g., 1955), use the numeral.

Consistency Is Key When Using Numbers in Your Writing

Always strive for consistency, even if it overrides a previous rule. For example, if your document uses numbers frequently, it is more appropriate for all numbers to remain as numerals to ensure that usage is uniform throughout. Similarly, if a single sentence combines small and large numbers, make sure that all the numbers are either spelled out or written as numerals.

Incorrect: The library acquired five new mystery novels, 12 new desktop computers, and 17 new periodicals.

Correct: The library acquired 5 new mystery novels, 12 new desktop computers, and 17 new periodicals.

Style Guides May Have Slightly Different Rules for Writing Numbers in Words

Let's complicate things a bit, shall we?

If your work must follow the rules of a specific style guide, understand that various guides all have rules for spelling out numbers that may differ slightly from the rules listed above. For example, MLA style indicates that writers may spell out numbers if they are not used too frequently in the document and can be represented with one or two words (e.g., twenty-four, one hundred, three thousand ). APA style advises that common fractions (e.g., two-thirds ) be expressed as words. A number of specific rules for spelling out numbers are outlined in Section 9.1 of the Chicago Manual of Style.

Your ultimate authority will always be a style guide, but in the absence of one, following the rules outlined above will help you stay consistent in your use of numbers in writing.

Image source: lyulkamazur/envato.elements.com

Perfect the Details. Get Professional Editing and Proofreading.

Hire an expert academic editor , or get a free sample.

About the Author

Scribendi's in-house editors work with writers from all over the globe to perfect their writing. They know that no piece of writing is complete without a professional edit, and they love to see a good piece of writing turn into a great one after the editing process. Scribendi's in-house editors are unrivaled in both experience and education, having collectively edited millions of words and obtained nearly 20 degrees collectively. They love consuming caffeinated beverages, reading books of various genres, and relaxing in quiet, dimly lit spaces.

Have You Read?

"The Complete Beginner's Guide to Academic Writing"

Related Posts

Online Research Tips for Students and Scholars: Our Most Helpful Articles

Punctuation Marks

The Semicolon and Colon

Upload your file(s) so we can calculate your word count, or enter your word count manually.

We will also recommend a service based on the file(s) you upload.

English is not my first language. I need English editing and proofreading so that I sound like a native speaker.

I need to have my journal article, dissertation, or term paper edited and proofread, or I need help with an admissions essay or proposal.

I have a novel, manuscript, play, or ebook. I need editing, copy editing, proofreading, a critique of my work, or a query package.

I need editing and proofreading for my white papers, reports, manuals, press releases, marketing materials, and other business documents.

I need to have my essay, project, assignment, or term paper edited and proofread.

I want to sound professional and to get hired. I have a resume, letter, email, or personal document that I need to have edited and proofread.

 Prices include your personal % discount.

 Prices include % sales tax ( ).

Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

Writing Numbers

Welcome to the Purdue OWL

This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.

Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

Although usage varies, most people spell out numbers that can be expressed in one or two words and use figures for numbers that are three or more words long. Note: If you are using a specific citation style, such as MLA or APA , consult the style manual for specific formatting instructions.

Here are some examples of specific situations:

Days and Years

Time of Day

Identification Numbers

Page and Division of Books and Plays

Decimals and Percentages

Large Round Numbers

Notes on Usage

Repeat numbers in commercial writing.

Use numerals in legal writing.

Numbers in series and statistics should be consistent.

Write out numbers beginning sentences.

Use a combination of figures and words for numbers when such a combination will keep your writing clear.

Have a language expert improve your writing

Run a free plagiarism check in 10 minutes, generate accurate citations for free.

• Knowledge Base
• Academic writing
• Writing numbers: words and numerals

APA Style Guidelines for Numbers | Words or Numerals?

Published on August 7, 2015 by Sarah Vinz . Revised on July 23, 2023.

Numbers can be written either as words (e.g., one hundred) or numerals (e.g., 100). In this article we follow the guidelines of APA Style , one of the most common style guides used in academic writing .

In general, words should be used for numbers from zero through nine, and numerals should be used from 10 onwards. This is true for both cardinal numbers (e.g., two, 11) and ordinal numbers (e.g., second, 11 th ). However, there are some important exceptions to this rule.

Note that other style guides, such as Chicago Style,  address numbers differently (for example, in Chicago, you use words for numbers up to 100). Regardless of what style guide you follow, the most important thing is to be consistent in how you treat numbers throughout your document.

Instantly correct all language mistakes in your text

Upload your document to correct all your mistakes in minutes

Table of contents

Writing percentages, reporting statistical results that include numbers, writing numbers that are accompanied by measurements, writing long numbers, consistency may not be obvious, other interesting articles.

Use numerals for numbers from zero to nine that are followed by a precise unit of measurement.

The samples measured 7 cm in diameter. (“cm” is a unit of measurement)

But: These three samples were subjected to further testing.

Use words for any number that is used to start a sentence, with the exception of years.

Seventy-two thousand ink cartridges are sold every day.

Nineteenth-century novels often feature complicated plot lines.

But: 2008 saw record olive crops throughout the Mediterranean.

Use words for common fractions and set expressions.

According to the survey, two thirds of the employees are dissatisfied.

Understanding the Five Pillars of Islam is a critical first step.

The Fourth of July is traditionally marked by a firework display.

Receive feedback on language, structure, and formatting

Professional editors proofread and edit your paper by focusing on:

• Academic style
• Vague sentences
• Style consistency

See an example

With percentages, the standard is to use numerals and “%” (not “percent”).

According to the report, 45% of the workforce is employed in the service sector. Only 6% currently work in agriculture.

The main exception is if you are using a percentage to begin a sentence. In this case, use words to express the entire percentage.

Thirteen percent of the patients reported that their symptoms improved after taking the experimental drug.

If your paper includes quantitative research, you probably have data to report. Statistics, mathematical functions, ratios, and percentages are all written using numerals. This is true regardless of whether they are included within a table or as part of the actual text. Keep the following guidelines in mind:

• Report most statistics to two decimal places (such as M = 5.44).
• Report statistics that could never exceed 1.0 to three decimal places (such as p < .001).
• If a value has the potential to exceed 1.0, use the leading zero. If a value can never exceed 1.0, do not use the leading zero.
• Italicize values that are not Greek letters (such as M , SD , p , and F ).
• Include spaces before and after =, >, and <.

The average IQ of the participants was relatively high ( M = 137.33, SD = 4.54).

The results of the second test were statistically significant, t (12) = 4.11, p < .05.

There are further detailed guidelines about reporting statistics in APA .

If a number comes immediately before a unit of measurement, use numerals.

Each patient received  5 mg  of the experimental drug.

The tallest participant was 2.03 m .

Also use numerals for precise ages, times, dates, scores, points on a scale, and amounts of money.

The final score of Ghana 2, Brazil 1 did not represent a decisive victory.

Children under 8 years receive a $50 discount.

But: Most girls start reading when they are about five years old. (“about” makes the number imprecise)

Longer numbers follow specific rules:

• Use a period to indicate a decimal point.
• Starting with 1,000, use commas to separate every three digits.

The region has an average of 43.75 doctors for every 10,000 people.

Some predict that the number of users will reach 2 billion by 2020.

One of the main reasons why writing numbers is complicated is that consistently applying the rules may lead to a text that actually seems very in consistent. Consider the following paragraphs:

At about the age of seven , the girl’s height was 1.47 m. This placed her in the fifth percentile, although her weight placed her in the top 7% of her class. By the time she was 9 years old, she was taller than half of the boys in her year. Five years later, she was still ranked 15 th .

Thirteen thousand viewers watched the performance of Shakespeare’s Twelfth Night from the park, while another 2,000 watched from the surrounding buildings and 1.2 million watched it on television. As one  out of every 11 residents saw at least part of the play, this one event can definitely be considered a success.

These texts may look awkward because so many different number formats have been used, but don’t be deceived – the above guidelines have all been followed.

If you are not required to strictly follow a particular style (such as APA format ), you may have some flexibility to modify the guidelines presented in this article. Just be sure to apply any modifications you make throughout your entire document.

If you want to know more about AI for academic writing, AI tools, or fallacies make sure to check out some of our other articles with explanations and examples or go directly to our tools!

• Begging the question fallacy
• Hasty generalization fallacy
• Equivocation fallacy
• False cause fallacy
• Sunk cost fallacy
• Deep learning
• Generative AI
• Machine learning
• Reinforcement learning
• Supervised vs. unsupervised learning

 (AI) Tools

• Grammar Checker
• Paraphrasing Tool
• Text Summarizer
• AI Detector
• Plagiarism Checker
• Citation Generator

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Vinz, S. (2023, July 23). APA Style Guidelines for Numbers | Words or Numerals?. Scribbr. Retrieved July 4, 2024, from https://www.scribbr.com/academic-writing/numbers/

Is this article helpful?

Sarah's academic background includes a Master of Arts in English, a Master of International Affairs degree, and a Bachelor of Arts in Political Science. She loves the challenge of finding the perfect formulation or wording and derives much satisfaction from helping students take their academic writing up a notch.

Other students also liked

Reporting statistics in apa style | guidelines & examples, using abbreviations and acronyms, language mistakes in quotes, "i thought ai proofreading was useless but..".

I've been using Scribbr for years now and I know it's a service that won't disappoint. It does a good job spotting mistakes”

When To Spell Out Numbers In Writing: Guide And Examples For Writers

• April 19, 2024
• Freelancing Tips

Table of Contents Hide

What are the rules for spelling out numbers, 7 rules for writing numbers in apa style, 4 rules for spelling out numbers in mla style, how to spell out numbers in ap style, 5 rules for spelling out numbers in chicago style, how to write numbers on checks, faqs on when to spell out numbers in writing, we also recommend.

When it comes to writing, one of the most common questions that often arises is when to spell out numbers and when to use numerical figures. Should you write “three” or “3”? The answer may not always be clear-cut, but understanding the rules and guidelines can help ensure consistency and clarity in your writing.

Numbers play a significant role in our everyday communication, whether it’s in academic papers, business reports, or creative writing. However, knowing when to spell out numbers can be tricky, especially with differing style guides and conventions.

It is usually best to write out numbers from zero to one hundred in nontechnical writing. In scientific and technical writing, the most suited style is to write out numbers under ten. While there are exceptions to these rules, your predominant concern should be expressing numbers consistently.

Different editorial-style manuals have different rules for when to spell out numbers instead of using numerals. Keep reading to find out when to spell out numbers and use numerals in different writing styles.

Each editorial style manual—including AP, APA, MLA, and Chicago Manual of Style—has different rules for spelling out numbers in the text. Numerical representations of amounts are employed in some contexts, whereas words are used in others. Numbers that start a sentence are usually always written out. It’s crucial to remember that there are exceptions to any writing style’s standards, particularly when working with whole numbers, fractions, and greater quantities.

READ ALSO: When to Use “Nor”: Clear Examples to Get It Right As a Writer

The American Psychological Association (or APA) style manual focuses on scientific writing but can be used in online editorials. To spell out numbers correctly using the APA style, here are general rules to follow:

• Spell out numbers below 10 . Numerals should be used for numbers 10 and above, numbers below 10 should be spelled out.
• Spell out numbers at the beginning of a sentence . A number that begins a sentence must be spelled out not written as a numeral, even if the number is below 10.
• Spell out common fractions or phrases with numbers . Write out numbers when they are part of common phrases or fractions. For example, you spell out the number in “The Twelve Days of Christmas” rather than using the numeral. If you’re using a common fraction or percentage like “one in fifteen people,” you also should spell out your numbers.
• Use numerals for measurements . If a number comes before a measurement (5 cm, 7g), use the numeral form rather than spelling it out.
• Use numerals for fractions, ratios, and percentages . Any number used for data and statistics (75%, 6:1) must come in a numeral form rather than the word spelling.
• Use numerals for sums of money, dates, ages, and time . If you’re discussing numbers like dollar amounts (3 dollars) or somebody’s age (7 years old), use numerals rather than spelling.
• Numbers in a series . When you’re referring to a number in a series—like Grade 7, or District 4—you have to use the numeral and capitalize the noun that comes before it.

READ ALSO: Extravert vs Extrovert: How to Choose the Right Word as a Writer

Here are a few formatting tips for following the Modern Language Association (or MLA) Style Guide for numbers.

• Write the numbers at the beginning of a sentence in words . If a number starts a sentence it should be spelled out rather than written as a numeral.
• Spell out simple numbers . If a number can be written with one or two words (fourteen, ninety-nine), it is spelled out. Numerals should be used in all other instances.
• Hyphenate compound numbers . Hyphens should be used for numbers from twenty-one to ninety-nine.
• Use symbols and abbreviations . Writers should pair numerals with their right symbols, such as “$” or “%” when necessary.

The Associated Press style also comes with its own set of rules for styling numbers, listed below.

• Spell out numbers one through nine . Use numerals for numbers 10 and greater. Ordinal numbers (i.e., third, 12th), follow the same known rule.
• Spell out numbers at the beginning of a sentence . If a number begins a sentence it should be spelled out.
• Use numerals for money . Except for cents or amounts over one million, all money should be expressed in number figures and not alphabets.
• Avoid starting sentences with numerals . If a sentence precedes a number (“Seven people arrived at the station”), it should be spelled out, unless that number is a year, in which case it can appear at the beginning of the sentence in numeral form: “1865 brought about a year of tremendous change.”
• The time of day can be expressed as a single number . Rather than typing out “10:00 p.m.,” time of day should be expressed as an abbreviated numeral (“10 p.m.”).

SEE ALSO: How To Write Dates Correctly In English, Spanish, MLA Format, Formal Letter

The Chicago Style Manual details its own guidelines for including numbers within a text.

• Spell out numbers zero through one hundred . Use numeral figures to represent numbers above one hundred, but spell out whole numbers like three hundred or one thousand. Use numerals to represent non-whole numbers, such as 1,239 or 603.
• Spell out cents for amounts less than one dollar . For amounts less than a dollar, avoid using a dollar sign or decimal point, and instead spell out the type of change. For example, “Soda only used to cost 25 cents.”
• Spell out numbers at the beginning of a sentence . If a number begins a sentence, it should be spelled out rather than noted as a numeral.
• Spell out large rounded numbers . Large whole numbers over 100 that are followed by hundred, thousand, hundred thousand, or million, should be spelled out unless they refer to amounts of money.
• Use numerals for fractions . Use numerals to represent your common fractions (8 ½, 4 ¾) unless they begin a sentence, in which case you would use words to spell them out (Eight and one-half, four, and three-fourths).

There is a unique pattern that applies when you write a cheque that will be used to draw money from a bank account or credit card cash advance. In this instance, the amount must be entered numerically in the space provided next to the dollar sign. You’ll then have to express it clearly. Since it takes 100 cents to make a dollar, you have the option of expressing the cents as a fraction out of 100 or using words for the dollars and cents. Remember to put the word “and” in between the pennies and the dollars.

• When writing a check for $1,044.12, the full text should be written as  one thousand forty-four dollars and 12/100.
• If you are writing a check for $182.40, you could write  one hundred eighty-two dollars and fifty cents  or  one hundred eighty-two dollars and 50/100 .
• If you are writing a check for $79.00 even, the text could say  seventy-nine dollars and 00/100 ,  seventy-nine dollars and no cents,  or  seventy-nine dollars  only.

If a number starts a sentence it should be spelled out rather than written as a numeral.

If a number comes before a measurement (5 cm, 7g), use the numeral form rather than spelling it out.

There are no universal rules when writing numbers unless you’re following a specific style guide or handbook or, in a professional context, working with an in-house style guide.

There is no hard and fast rule around when to spell out numbers and when to use numerals in your writing. It’s all dependent on the writing style guide or context and in-house writing style.

• grammarly.com – When Should I Spell Out Numbers?
• yourdictionary.com – Rules for Writing Numbers: Know When To Spell Them Out
• When to Use ‘Whomever’: Navigating the Maze
• “Over” vs “More Than”: How to Use Both Correctly as a Writer
• When to Use ‘Its’ and ‘It’s’: Cracking the Code
• When to Use There and Their: Unlocking the Mystery of ‘There’ and ‘Their’
• When to Use ‘Have’ or ‘Has’: Solving the Verb Puzzle

Related Posts

How to write an application letter for kitchen assistant with no experience: nigerians most ultimate guide.

• June 29, 2024

How to Write an Application Letter to a Pharmacy Store Without Experience in Nigeria

• June 28, 2024

How to Write a Loan Application Letter as a Nigerian | Example, Format, Template, & How-To Guide

Daily Writing Tips

10 rules for writing numbers and numerals.

How do you express numbers in your writing? When do you use figures (digits) and when do you write out the number in words (letters)? That is, when do you write 9 and when do you write nine ?

1. Number versus numeral . First things first, what is the difference between a number and a numeral? A number is an abstract concept while a numeral is a symbol used to express that number. “Three,” “3” and “III” are all symbols used to express the same number (or the concept of “threeness”). One could say that the difference between a number and its numerals is like the difference between a person and her name.

2. Spell small numbers out . The small numbers, such as whole numbers smaller than ten, should be spelled out. That’s one rule you can count on. If you don’t spell numbers out it will look like you’re sending an instant message, and you want to be more formal than that in your writing.

3. No other standard rule : Experts don’t always agree on other rules. Some experts say that any one-word number should be written out. Two-word numbers should be expressed in figures. That is, they say you should write out twelve or twenty . But not 24 .

4. Using the comma . In English, the comma is used as a thousands separator (and the period as a decimal separator), to make large numbers easier to read. So write the size of Alaska as 571,951 square miles instead of 571951 square miles. In Continental Europe the opposite is true, periods are used to separate large numbers and the comma is used for decimals. Finally, the International Systems of Units (SI) recommends that a space should be used to separate groups of three digits, and both the comma and the period should be used only to denote decimals, like $13 200,50 (the comma part is a mess… I know).

5. Don’t start a sentence with a numeral . Make it “Fourscore and seven years ago,” not “4 score and 7 years ago.” That means you might have to rewrite some sentences: “Fans bought 400,000 copies the first day” instead of “400,000 copies were sold the first day.”

6. Centuries and decades should be spelled out . Use the Eighties or nineteenth century .

7. Percentages and recipes . With everyday writing and recipes you can use digits, like “4% of the children” or “Add 2 cups of brown rice.” In formal writing, however, you should spell the percentage out like “12 percent of the players” (or “twelve percent of the players,” depending on your preference as explained in point three).

8. If the number is rounded or estimated, spell it out . Rounded numbers over a million are written as a numeral plus a word. Use “About 400 million people speak Spanish natively,” instead of “About 400,000,000 people speak Spanish natively .” If you’re using the exact number, you’d write it out, of course.

9. Two numbers next to each other . It can be confusing if you write “7 13-year-olds”, so write one of them as a numeral, like “seven 13-year-olds”. Pick the number that has the fewest letters.

10. Ordinal numbers and consistency . Don’t say “He was my 1st true love,” but rather “He was my first true love.” Be consistent within the same sentence. If my teacher has 23 beginning students, she also has 18 advanced students, not eighteen advanced students.

Video Recap

Stop making those embarrassing mistakes! Subscribe to Daily Writing Tips today!

You will improve your English in only 5 minutes per day, guaranteed!

Each newsletter contains a writing tip, word of the day, and exercise!

You'll also get three bonus ebooks completely free!

210 thoughts on “10 Rules for Writing Numbers and Numerals”

Most of these are correct. But, concerning 7, the percentage symbol should not be used in everyday writing. The percentage symbol is for business use, such as visual presentation. In other forms the word “percent” should be used. Also, your example in 10, concerning the students, is correct because the numbers are related. But, if the numbers aren’t related, then the “rule of ten” applies. Here’s an example: Sadly, there were only eight computers available to the 23 students.

As always, the tips provided here are valuable for many. That’s why I keep coming back “daily.”

Jay, good point on number seven. I think you should use digits for everyday writing and spell the percentage out in formal writing (like a newspaper article). I added this remark.

I believe there is a rule on using numbers with age as well, right? As in “always use figures to represent the age of a person.”

I was not aware of those of these rules, cool.

Is the comma used as a thousand separator everywhere English is spoken, or is that just an American rule?

Berto, that is the English standard, so it should apply both to UK and US.

Notice, however, that some places around the world use the dot as a separator and the comma to denote decimals.

To add confusion, the International System of Units recommends to use spaces to the sets of three digits, and use the comma or period just for the decimal.

I just added this info to the post, thanks for asking.

#2 is one that I always have a dilemma with. I know with AP style writing you’re suppose to write numbers you’ve stated in #2. In MLA style, you write one, five, twenty-one, one hundred, eighteen hundred, but write 5½, 101, 3,810. I actually like the AP style better with writing out one through nine and ten on, writing it as 10, 11, 12, etc.

I am curious though, your #2 you said “The small numbers, such as whole numbers smaller than ten, should be spelled out.” Why have you not wrote 10 as “10” since only numbers smaller than 10 should be spelled out?

Oops, that would make sense. But see rule #3!

Deron, point two says that all whole numbers smaller than ten should be spelled out. It does not say anything about number equal or greater than ten. In fact, if you then read point 3 you will see that there is no standard rule for those numbers, some authors like to write them in digits, others still prefer to spell them out.

Heh, now I feel bad for naming my blog 60 in 3. Oh well, thank you as always for the great tips.

Firstly: 1. Number versus numeral. First things first, what is the difference between a number and a numeral? A number is an abstract concept while a numeral is a symbol used to express that number.

Then: 5. Don’t start a sentence with a number. Make it “Fourscore and seven years ago,” not “4 score and 7 years ago.”

Shouldn’t that be: 5. Don’t start a sentence with a NUMERAL.

Last time I checked, “four” and “4” where both numbers…

van, number 5 is fixed, thanks for the heads up.

Then, “four” and “4” are both numerals used to express the concept of “fourness,” they are not numbers themselves, they are symbols.

It is quite confusing I know, and probably not useful for the average writer. The other rules do apply though.

I suppose it depends what grammar book you want to fall back on, but it would easy to argue that you’re flat-out wrong about when to spell out numbers.

Use numerals before anything that can be measured: 3 decades, 3 years, 3 GB but not 3 children.

Use numerals when using a single digit number and a number composed of two or more digits in the same sentence. “Bob ate 3 cows and 12 pigs,” not “Bob are three cows and 12 pigs.”

One more for your list: Spell out any number used in a quote: “…four score..” and not “…4 score..”

Michael, 3 years you say? Well, here is a quote from the NY Times:

“Dobbs’s correspondents said there had been 7,000 cases of leprosy in this country over the previous three years, far more than in the past.”

“the difference between a number and its numerals is like the difference between a person and its name”

..a person and his name or ..a person and her name but never ..a person and its name

Bill, fixed that. I was thinking about an object and its name 🙂 , like the words that define it.

What I think it boils down to is: try writing the numerals in words; chances are that’s the right way. If words are obviously more confusing than digits, use digits. For example: “the second chapter”; “she’ll be eleven years old in two days”; “it’s the third road down the right”. These are all correct. But “seventeen point twelve percent of the data applies to all of our six hundred and forty two units and the rest only concerns the items that are stored in area three seven two” is confusing, and the numbers here should be written in digits. It’s more flexible than the rules above, but it follows the same spirit.

The comma is an English rule, so it must apply in the US as well. (NOT the other way about)

#4: The UK is in Europe. We do not use a comma as you describe. Thanks anyway.

Also whilst we’re talking about international numbering, isn’t it about time that the USA moved on from imperial measurements to metric like the rest of the world?

Good point Emmanuel, common sense should help here as usual.

I didn’t know about all the rules. I visited this for the first time but I liked it. I will visit it regularly. Keep it up. Thanks

Hey Daniel, thanks for pointing that out. My mistake on misreading what was there. 🙂

With that said, since there is not standard rule, what is your own personal preference?

I’ve been reading quite a bit about typography lately, which has impressed on me another rule that you should add to your list:

In the flow of a typical sentence (i.e. for ‘inline’ numbers), you should use “lower case” numbers.

Yes, you can have lower case numbers!

@James And about time the UK used kg instead of stone to denote body weight

James, enjoy 2.5 dl of tea

You can write it out when it is two words or less. Twenty is acceptable. Twenty-four is acceptable. If it requires more than two words, you should use the numbers.

So you say to spell out twelve, but then you say “12 percent”? Shouldn’t it be “twelve percent”?

Nitro, we are not saying you should spell out twelve. The only standard rule, as stated in point one, is to spell out whole numbers smaller than ten.

Other than that it is up to the author and his preference for the specific situation.

Personally I like use digits above the number te because it makes the text more clear, like “15 percent.” For smaller numbers you can spell them out though, like “five percent” or “two percent.”

These standards are good for English, but why not broaden the standard to multiple languages?

Why not just remove spelling out of numerals completely and standardize on using Arabic numbers? Then the numbers would never have to be translated except to traditional less used numbering systems. Then people who read the articles in foreign languages like French, Spanish, Hindi, Chinese, Russian, and a plethora more could understand without mentally having to translating from the English naming convention into their own numerical naming convention.

gr commenent Pascal-its g 2 c read comments from ppl with g sense of humours. ur a *!

Out of interest how would write operators?

PS you need a subscribe to comments option

Everton, it is on the “to do” list 🙂 .

Thank you very much for providing this very valuable lesson in writing skills I’ve always wanted to acquire.

Good tips. I’m enjoying this website quite a bit. 🙂

One more point I’d add, though, is using numerals for lists. It helps one remember the number itself more easily than if you had spelt it out, and aids quick comparison. E.g.,

3 eggs 4 cartons of milk 1 roast duck 2 oranges

Don’t you think the title should have been Ten Rules for… instead of 10 Rules for … considering your own guidelines?

Mike, usually titles have different rules, as far as typography goes at least (we should have covered that perhaps).

Like titles usually have all the words starting with capital letters, you don’t write that way normally.

That said, even if you consider our guidelines the “10 Rules” is congruent with points two and three. They state that numbers smaller than ten should be spelled out, and after that it is preference of the author.

Thanks Daniel. As you mentioned that titles have different rules. I feel the title should start with a word. It looks more aesthetically pleasing. Not sure whether anyone agrees with me.

Mike, I agree with you 🙂 . Maybe starting the title with a word is more pleasant, I will research about it and even experiment with it in the future.

You shouldn’t write “percent” ever. It’s wrong like “etcetera” is wrong. Put the space between the words: “per cent”.

Very well written list. Now if we could teach all newscasters and advertisers how to SAY numbers I would be in heaven. Seems they all got stupid in the year two thousand AND one.

It is funny when people come and say: “hey, you should not say that, ever!” or “you are dead wrong here!”

Just make a quick search on the net before posting such strong statements.

Per cent is the preferred British form, and percent is the American usage. Open the NY Times or the Wall Street Journal and you will find “percent” everywhere.

Thanks for the comment though, it served the purpose of clarifying this point.

Good post! There were many points, which I havent known until I read this article. But seems some of these rules are not practicable special ‘dot’ and ‘comma’ rule. -Nish

I never really new there was a difference. Thanks for the post. Very informative!

What is correct: “It’s my 13th birthday” or “It’s my thirteenth birthday”?

I like to know how to write the number seven hundred two thousand, three

as i am the first visitor of this web site so i have no comment writs now .

what about: 24-7 (VS) twenty-four seven ??

How would you write 1.5 to 2 acre lots?

Sir My Need IELTS book and DVD

Send my Address

Abdullah Al Masud C/O Md.Azizur Rahman Block # C , Road # 37 House # 33 Uposhohar , Sylhet Bangladesh

Which is correct?

We celebrated our ninth birthday party together. We celebrated our ninth birthday partys together.

Leave a Comment

Writing Numbers: How to Write Numbers Correctly (Examples)

Are you confused about how to write numbers correctly in your writing? Should you spell them out or use numerals? After reading this article, you'll wonder no more.

You have several options when writing numbers: spell them out or use digits. Which one you go for will depend on common number writing conventions and the style guide you're using.

This article is part of our free online Grammar Book .

What Are the Different Types of Numbers?

Before diving in, let's review the different kinds of numbers. The two main types are cardinal and ordinal numbers.

• Cardinal numbers are what you think of when you think of numbers: one, two, three, etc. They tell you how many of something there is, and you use them for counting. 

Here are some examples of sentences that use cardinal numbers:

I have one dog and three cats. The concert was attended by over a thousand people. There were nine of us in the office this morning. 

• Ordinal numbers tell you what order things are in or their rank or position: first, second, third, etc . As the word 'ordinal' suggests, ordinal numbers allow you to put things in order.

Here are some examples of sentences that use ordinal numbers:

She came second in the competition.  I'm the third tallest girl in my class. Our offices are on the sixteenth floor.

There are also other types of numerals, such as nominal, iterative, multiplicative, and many more.

How to Write Numbers Correctly

Now that we've established what numbers are and the different types, let's learn how to write them.

You can either spell out a number as such:

Or you can write it in numerals , as such:

This can be a little tricky because different style guides follow different rules. Your best bet is always to consult your chosen style guide if you have one. If you don't , this article will provide some guidance in the form of commonly used conventions for writing numbers.

I'll use the words 'numeral, ' 'Arabic numbers,' 'digits,' and 'figures' interchangeably to refer to numbers ('1') and the terms 'spell out' and 'letters' to refer to words written out ('one').

Writing Cardinal Numbers

I'll start by outlining standard practice for cardinal numbers. Again, these are just general guidelines that are most commonly agreed upon, and you can feel free to deviate from these. The key is to remain consistent: pick a style and stick with it.

Spell the First Word

Firstly, it's standard practice to spell out a number if it's the first word in the sentence , which trumps any other rule. So, for example, even though dates are usually written in numerals, if it's the first word in the sentence, you should spell it out.

If you'd prefer to write it in numerals for better aesthetic and readability, you can always rephrase your sentence so the date isn't the first word.

For example:

Nineteen-ninety nine was a big year for us. A big year for us was 1999.

Small and Large Numbers

A good rule of thumb is to spell out numbers zero through nine and use numerals from there onwards. However, some style guides disagree with this, such as the Chicago Manual of Style, which suggests that you spell out the numbers zero through one hundred and use numbers from 101 onwards.

Just pick the rule that makes the most sense to you!

Years, Decades, and Centuries

Generally, it's best to write specific years in Arabic numerals.

I was born in 1972.

Spell out decades in formal writing, but know that it's also safe to write them in numerals. Just remember there's no apostrophe before the 's.'

I love the fashion in the sixties. I love the fashion in the 60s. I love the fashion in the 1960s.

The same rule applies to centuries: spell it out in formal writing, but numerals are acceptable the rest of the time.

This is the twenty-first century, you know . This is the 21st century, you know. 

Percentages

Write percentages in figures followed by the percent sign.

I'm about 80% certain this deal isn't going to go through .

Units of Measurement

Write units of measurement in figures:

I weigh 65kg. The park is 100m to the right. He ran the race in 3h45mn.

Write money in figures, too:

I've only got $1 to my name. The house is about 10 grand over my budget. You're 5 cents short.

Fractions and Decimals

Fractions aren't technically cardinal numbers, but we use a mixture of cardinal and ordinal numbers to spell them out. Depending on the context, they can be written in numerals or letters. Usually, if it's a scientific or mathematical text, the fraction will be written in figures, but if it's any other kind of text (such as an essay discussing research findings,  you'll most likely want to spell it out.

About one-fifth of the class is behind in Mathematics. 

Write decimals using numerals. If you have to spell it out, round it up to the closest number:

Unless it is half, then you can write:

one and a half.

Multiple Numbers in a Sentence

If your sentence has two numbers in a row, you should use different formats for each one so they don't get mixed up.

There are five 4-year olds in my class.

If a sentence has multiple numbers and one of them requires numerals, then use numerals for all of them, even those under 10.

The farm has 3 goats, 11 cows, 5 horses and 8 pigs.

Using Hyphens in Numbers

Sometimes when spelling out numbers, you'll need to use a hyphen . We use them to connect two-word numbers. Hyphenate all compound numbers from twenty-one through ninety-nine.

There are one thousand, three hundred and fifty-six children that go to this high school .

Als,o hyphenate fractions:

About two-thirds of the population have tried meditation at least once.

Writing Ordinal Numbers

Now we've covered how to write cardinal numbers, let's learn how to write ordinal numbers. First of all, you might want to know how to make them.

For the most part, you create ordinal numbers by adding 'th' to cardinal numbers.

That's with the exception of the following:

Other than those, it's pretty smooth sailing:

• fifteenth, and so on.

To write them in numerals, it's even easier: you add the last two letters of the written number to the end of the cardinal number:

• Fir st  → 1st
• Seco nd → 2nd
• Thi rd → 3rd
• Four th → 4th
• Fif th → 5th

So what are ordinal numbers used for? The answer is they are pretty much used for any kind of positioning or ranking. That could include floors of a building, dates, fractions, centuries, positions in line,e or lists.

When should you spell vs use numerals with ordinals? The answer is the same as with cardinal numbers: spell them out from 'first' to 'ninth,' and then after that, use numerals.

Concluding Thoughts

That concludes this article on writing numbers correctly. I hope you now feel more confident using numbers in your writing.

Let's summarize what we've learned:

• The two main types of numbers are cardinal and ordinal.
• You can either spell out or use numerals when writing numbers.
• It's generally agreed upon that you should spell out numbers zero through nine and then switch to digits.
• Different style guides have different rules.
• Stay consistent with the rules you decide to follow.

If you enjoyed this article, check out our Grammar Book , a free online database of articles to help you with your writing, just like this one. Check it out!

Learn More:

• Ellipses: When to Use Ellipses in Writing (Examples)
• ‘Ninty’ or ‘Ninety’: How to Spell the Number ‘90’ Correctly
• Simple Sentence: What Is a Simple Sentence? Definition and Examples
• Sentence Fragments: What Are Sentence Fragments? Definition and Examples
• Periods: When to Use Periods in Writing (Examples)
• Question Marks: When to Use Question Marks in Writing (Examples)
• Exclamation Points: When to Use Exclamation Points in Writing (Examples)
• Semicolons: When to Use Semicolons in Writing (Examples)
• Apostrophes: When to Use Apostrophes in Writing (Examples)
• Parentheses: When to Use Parentheses in Writing (Examples)
• Brackets: When to Use Brackets in Writing (Examples)
• Slash: When to Use Slash in Writing (Examples)
• Italics and Underlining: When to Use Italics and Underlining in Writing (Examples)
• ‘Holliday’ or ‘Holiday’: How to Spell ‘Holiday’ Correctly
• ‘Colum’ or ‘Column’: How to Spell ‘Column’ Correctly

We encourage you to share this article on Twitter and Facebook . Just click those two links - you'll see why.

It's important to share the news to spread the truth. Most people won't.

Add new comment Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Post Comment

Essay Papers Writing Online

Simple and clear rules for writing numbers in an essay that will impress any reader.

When it comes to showcasing numerical information within an essay or any other form of written content, it is essential to master the art of effectively conveying numerical data. Numbers, whether they represent statistical figures, percentages, monetary values, or quantities, require a unique approach in order to engage the reader and provide a clear understanding of the information being presented.

In the realm of written expression, numbers can often appear mundane and monotonous, dulling the impact of the overall message. However, through the use of creative and thoughtful techniques, one can transform these numerical figures into engaging storytelling tools that enhance the flow and impact of the written work.

Emphasizing numerical data can be achieved through various methods , starting with the careful selection of appropriate linguistic devices. Utilizing vivid and descriptive language, such as powerful adjectives and adverbs, can bring numbers to life and create a visual representation in the reader’s mind. For example, instead of simply stating that the company’s profit increased by 20%, one could say that the profit skyrocketed or surged by an astounding 20%. This not only adds excitement and energy to the writing but also captures the reader’s attention and encourages them to delve deeper into the information being presented.

Rules for Writing Numbers in an Essay

When it comes to writing numbers in an essay, there are certain rules and guidelines that should be followed. These rules ensure clarity and consistency throughout the essay, making it easier for readers to understand the information being presented. By adhering to these rules, writers can effectively communicate numerical information in a way that is both accurate and professional.

1. Spell out numbers from zero to nine. Numbers that are spelled out from zero to nine should be written as words in an essay. For example, “two apples,” “sixty-three percent,” or “nine thousand.” This helps to maintain consistency and readability in the text.

2. Use numerals for numbers 10 and above. Numbers that are 10 or greater should be written using numerals in an essay. For example, “14 fish,” “85 participants,” or “101 pages.” This makes it easier for readers to quickly comprehend the numerical information without any confusion.

3. Follow specific style guides for exceptions. In some cases, specific style guides may have exceptions to the general rules for writing numbers. For example, certain style guides may require the use of numerals for numbers that are greater than 100. Make sure to consult the appropriate style guide for any exceptions that may apply to your writing.

4. Use numerals for dates, times, and measurements. When writing dates, times, and measurements, it is generally preferred to use numerals rather than spelling them out. For example, “On July 4, 2023,” “at 12:30 p.m.,” or “3 meters long.” This helps to convey the exactness and precision of the information being presented.

5. Be consistent. Consistency is key when it comes to writing numbers in an essay. Choose a specific style and stick to it throughout the entire essay. Whether you choose to spell out numbers from zero to nine or use numerals for all numbers, make sure to apply the same formatting consistently.

By following these rules for writing numbers in an essay, writers can ensure that their numerical information is presented accurately and professionally. This enhances the overall clarity and comprehension of the essay, making it easier for readers to engage with the content.

Learn the basic guidelines for writing numbers in academic essays

Gain a solid understanding of the fundamental principles for expressing numerical values in your academic essays. Properly presenting numbers is essential for maintaining clarity and consistency in your writing. By adhering to these basic guidelines, you can ensure that your essays adhere to standard formatting conventions and effectively convey information to your readers.

1. Spell out small whole numbers: In general, numbers from one to nine are spelled out in academic essays. For example, instead of writing “2 cats,” you would write “two cats.” This practice helps to maintain a smooth flow of reading and prevents numerical symbols from disrupting the text.

2. Use numerals for large numbers and numbers with decimal points: When dealing with numbers greater than nine or numbers that involve decimal points, it is appropriate to use numerals. For instance, you would write “17 participants,” “6.5 percent,” or “2,500 words.” Numerals are especially useful for conveying exact values and facilitating comparisons.

3. Express common measurements with symbols: When discussing well-known units of measurement, it is acceptable to use their symbols without spelling them out. For example, “3 km” instead of “three kilometers” or “5 kg” instead of “five kilograms.” This approach saves space and is widely understood in academic writing.

4. Be consistent in expressing numerical ranges: When indicating a range of values, use the appropriate punctuation for clarity. For instance, you would write “between 5 and 10 books,” “from 200 to 300 participants,” or “in the years 1990-2000.” Consistency within a range helps the reader easily grasp the scope of the given information.

5. Follow specific style guides: Different style guides may have their own rules for writing numbers. For example, APA style may differ from MLA style. It is important to consult the style guide specified by your academic institution or instructor to ensure accurate and consistent presentation of numbers in your essays.

By following these basic guidelines, you can effectively incorporate numbers into your academic essays and enhance the overall clarity and professionalism of your writing.

The Role of Consistency in Writing Numbers

Consistency plays a crucial role when it comes to writing numbers in various contexts. Maintaining a consistent style throughout an essay or any written piece not only enhances readability but also ensures clarity and professionalism. Consistency in writing numbers refers to using the same format and style when expressing numerical values, whether they are written in digits or spelled out in words. Consistency helps to avoid confusion and allows readers to understand and interpret the numbers accurately.

One aspect of consistency in writing numbers involves deciding whether to use numerals or words. It is important to establish a set of guidelines and follow them consistently. For example, in scientific or technical writing, it is common to use numerals for measurements, percentages, statistics, and mathematical expressions. On the other hand, when writing literary or journalistic pieces, it is often preferred to spell out numbers up to ten and use numerals for larger values. By consistently applying these guidelines, writers can ensure that their numerical references are not only stylistically appropriate but also coherent within the context of their work.

Another aspect of consistency in writing numbers is ensuring that the same format is used throughout the entire essay or document. This includes deciding whether to use commas or spaces for thousands separators, the placement of decimal points, the use of currency symbols, and the format for dates and times. Consistency in these formatting choices helps readers to quickly and accurately interpret the numbers presented. It also helps to establish a professional and organized appearance in the written piece.

In addition to maintaining consistency within a single piece of writing, it is also important to be consistent across different documents or sources. This is particularly relevant when referencing numbers or data from external sources, such as research studies or statistical reports. By using consistent formats and styles, writers can provide a clear and cohesive presentation of numerical information, making it easier for readers to compare and understand the data across different sources.

Understand why consistency is important when writing numbers in an essay

Consistency plays a vital role when it comes to writing numbers in an essay. It ensures uniformity and clarity in conveying numerical information to the readers. By maintaining consistency in the representation of numbers, writers can effectively communicate their ideas and avoid confusion or misinterpretation. This section will delve into the importance of consistency and how it helps in enhancing the overall quality of an essay.

Consistency eliminates ambiguity: When writing numbers, inconsistency can lead to ambiguity, making it difficult for readers to comprehend the intended meaning. By following consistent formatting rules, such as using numerals for larger numbers or spelling out numbers for general descriptions, writers can ensure clarity and eliminate any confusion that arises from inconsistent presentation.

Consistency enhances readability: Readers easily navigate through an essay when it follows a consistent style and structure, including the representation of numbers. Consistent use of numerals or spelled-out numbers within the same context creates a visual rhythm, making the text more readable and engaging. It also helps readers to quickly identify relevant information and grasp the intended message without any distractions.

Consistency promotes professionalism: In academic and professional writing, consistency is valued as it reflects a meticulous approach to communication. By consistently using the appropriate conventions for writing numbers, writers demonstrate attention to detail and adherence to established standards. This conveys professionalism and enhances the credibility of the essay, making it more persuasive and impactful.

Consistency ensures accuracy: Writing numbers inconsistently can lead to inaccuracies and errors, especially when dealing with statistical or technical information. By maintaining consistency, writers can avoid potential mistakes and convey accurate data to support their arguments. Whether it is using consistent formatting for decimal places, percentages, or measurements, consistency ensures the precision and reliability of the information presented.

Consistency fosters a cohesive narrative: Writing an essay involves presenting ideas and arguments in a logical and coherent manner. By employing consistent styles and conventions for numbers, writers create a cohesive narrative that flows smoothly throughout the text. This consistency not only aids in the readability of the essay but also contributes to the overall coherence and structure of the piece, allowing the reader to follow the writer’s train of thought effortlessly.

In conclusion, consistency in writing numbers is essential as it eliminates ambiguity, enhances readability, promotes professionalism, ensures accuracy, and fosters a cohesive narrative. By applying consistent formatting and following established rules, writers can effectively communicate numerical information in an essay, making it more accessible, impactful, and engaging for the readers.

When to Spell Out Numbers in an Essay

Choosing whether to write a number as a numeral or spell it out can be a matter of style and convention. There are certain guidelines that can help determine when it is appropriate to spell out numbers in an essay.

When considering whether to use numerals or words to represent numbers, it is important to consider the context and purpose of the writing. In academic or formal writing, it is generally recommended to spell out numbers that can be expressed in one or two words, and to use numerals for numbers greater than nine or when emphasizing a specific quantity. However, in more informal or creative writing, it is often acceptable to use numerals for any number, as long as it is consistent throughout the essay.

Another factor to consider is the specific style guide or formatting guidelines being used. Different style guides, such as APA, MLA, and Chicago, have their own rules for when to spell out numbers and when to use numerals. It is important to consult the appropriate style guide for the specific requirements of the essay or writing assignment.

Additionally, when writing about percentages, currencies, and measurements, it is generally recommended to use numerals instead of spelling them out. This helps to ensure clarity and consistency in the representation of these specific types of numbers.

Ultimately, the decision to spell out numbers or use numerals in an essay may vary depending on the style, context, and guidelines being followed. It is important to consider the specific requirements and expectations of the writing situation to determine the most appropriate approach for representing numbers in the essay.

Discover the instances when numbers should be spelled out in your essay

One of the key elements in writing a well-crafted essay is effectively using numbers. While it may be tempting to use numerals for convenience and brevity, there are instances when it is important to spell out numbers. By doing so, you can enhance readability, maintain consistency, and adhere to established writing conventions.

When it comes to writing numbers, it is important to consider the context and purpose of your essay. In some cases, it is best to spell out numbers to provide clarity and avoid confusion. For instance, when expressing exact quantities, such as counting individuals or items, it is generally preferred to spell out numbers from one to nine. This helps to maintain flow and avoid disruption in the text.

Furthermore, when writing about statistics or data that are not precise measures, it is often recommended to spell out the numbers. This can help to convey a sense of importance and avoid the appearance of unnecessary precision. For example, instead of writing “5.3 million people,” you could write “over five million people” to capture the magnitude of the statistic without an excessive level of detail.

In addition, spelling out numbers can be particularly important when discussing percentages or ratios. This allows you to emphasize the proportion or relationship being described without the distraction of numerals. For example, instead of writing “25% of the population,” you could write “a quarter of the population” to convey the same information in a more engaging and understandable way.

Another instance where spelling out numbers is important is when they are used at the beginning of a sentence. It is considered more appropriate and aesthetically pleasing to spell out numbers in these cases to maintain consistency and avoid starting sentences with numerals. This can help to create a smoother reading experience for your audience.

Overall, understanding the instances when numbers should be spelled out in your essay can greatly enhance the quality of your writing. By being mindful of the context, purpose, and conventions of your essay, you can effectively utilize numbers to enhance clarity and readability. So, whether you are discussing exact quantities, statistics, percentages, or starting a sentence, remember to consider when it is best to spell out the numbers rather than using numerals.

Using Numerals in Academic Writing

Utilizing digits and numbers effectively is a fundamental aspect of academic writing. The correct presentation of numerical data can enhance the clarity, precision, and professionalism of your writing. Whether you are discussing statistics, presenting results, or referencing research findings, understanding how to use numerals properly is essential.

In academic writing, it is common practice to use numerals for numbers greater than nine. This helps to ensure consistency, readability, and ease of comprehension for your readers. Additionally, using numerals can also help to create a concise and efficient writing style.

When discussing percentages, decimal numbers, or fractions, it is generally best to use numerals. For example, “The study found that 75% of participants reported an improvement in their overall well-being.” Similarly, numerical measurements such as distances, weights, and temperatures should also be expressed using digits, such as “The experiment was conducted at a temperature of -20°C.”

However, there are exceptions to the use of numerals in academic writing. For example, when beginning a sentence, it is recommended to spell out numbers instead of using digits. For instance, “Fifty participants were selected for the study.” Additionally, when referring to approximate or rounded numbers, it is often best to use words. For example, “The population of the city is approximately one million people.”

In some cases, the choice to use numerals or words may be a matter of style or preference, and it is important to follow the guidelines set by your academic institution or discipline. Paying attention to these details can help to ensure the accuracy and professionalism of your writing.

Overall, the appropriate use of numerals in academic writing can significantly enhance the clarity and impact of your work. By adhering to the conventions of using numerals for numbers greater than nine, using digits for percentages and measurements, and applying exceptions for certain situations, you can ensure that your writing is accurate, consistent, and engaging.

Related Post

How to master the art of writing expository essays and captivate your audience, convenient and reliable source to purchase college essays online, step-by-step guide to crafting a powerful literary analysis essay, unlock success with a comprehensive business research paper example guide, unlock your writing potential with writers college – transform your passion into profession, “unlocking the secrets of academic success – navigating the world of research papers in college”, master the art of sociological expression – elevate your writing skills in sociology.

The Barker Underground

Writing advice from the harvard college writing center tutors, one hundred percent or 100% tips for writing numbers..

by Raymond DeLuca, English Grammar and Language Tutor

Students bring all sorts of different essays to the Writing Center, and each discipline has its own conventions when it comes to writing numbers. People are always surprised to learn that, yes, there are good and not so good ways to write numbers in English. So, this information will save you a headache. After all, it is not the best use of your time when writing an essay (especially when it’s due in a few hours) to get stuck thinking, well, is it “3” or “three”?

Just as there are different citation styles for citing sources in different academic fields, there are also different conventions for writing numbers. Each of the most common citation styles—MLA, APA, and Chicago– offers slightly different rules for writing numbers. You should always make sure you know what style and citation guidelines you should be following for a specific assignment. If you are writing a non-technical paper and can choose your style, I recommend following the MLA guidelines, which make a lot of sense and are commonly used in cases where you’re not using a lot of numbers.

Rule #1: When should you write out numbers and when should you use the number?

For papers in the humanities and in some social sciences, you will often use either the MLA or Chicago citation styles. In those styles, when you are writing a non-technical paper, you should write out numbers less than one hundred, using a dash for two-digit numbers: eight, fifteen, forty-five, sixty-two, eighty-seven, etc., etc.  And, for numbers over one hundred: 1,435; 2,870; 5,740; 11,480. Someone here is bound to ask: “Well, does that mean one trillion should be written as 1,000,000,000,000?” No, of course not. If the number (even if it’s above one hundred) can be easily expressed in words, then keep it in words: four hundred, eight thousand, three billion, nine quintillion, etc.

If you’re using APA style, you should generally only write out numbers 1-9 and use numerals for everything else. But there is an exception: If you are using a number at the beginning of the sentence, you should write it out.

Rule #2 What about percentages?

Just like with regular numbers, different style guides express different preferences for percentages.  I like the MLA style, which advises that for a percentage less than one hundred, you should write it in words: two percent, seventy-six percent, ninety-nine percent, but, for a percentage greater than one hundred, write it in numerals: 110 percent, 500 percent, 999 percent. Besides that, as you can see, in non-technical writing, it is better to use the word “percent” rather than the percent sign, “%.” It’s ugly.

In this case, Chicago and APA style both call for using use numbers in percentages.

Rule #3: What about years?

MLA, Chicago, and APA style all say that years are better written in numerals, not words: 1967, not “nineteen sixty-seven.” (Sometimes students write out the years to pad their paper’s word count; it’s not a good look! Everyone can see what you’re doing.) It’s also considered poor style to start a sentence with a year, i.e., “2020 has been a bad year.” You could rephrase that, writing instead: “Many people thought 2020 would be a better year.”

Rule #4: What about decades?

If you’re talking about a series of events that occurred in a certain decade, say, from 1980 – 1989, you can refer to that period in three different ways: the eighties, the ‘80s, or the 1980s. But stay clear of the “nineteen eighties.”

Rule #5: If you ever find yourself writing about a score or a court decision or a ratio, you should stick with numerals (even if said numbers are less than one hundred). For example, “The Red Sox were up 4-2 before losing 6-4,” or “The contentious 5-4 Supreme Court ruling says…”

These are obviously not the only situations you will encounter when you need to write a number, but these rules will help clear up some of the most common issues I’ve seen in student writing. Numbers can be as easy as one, two, three. If you find yourself writing a science or an econometrics paper, you may have to use way more numbers than you would otherwise, and you will need to make sure you are following the guidelines in your field. Generally, though, these five suggestions are good to keep in mind.

Share this:

Leave a comment.

• Already have a WordPress.com account? Log in now.
• Subscribe Subscribed
• Copy shortlink
• Report this content
• View post in Reader
• Manage subscriptions
• Collapse this bar

Writing academically: Numbers

• Academic style
• Personal pronouns
• Contractions
• Abbreviations
• Signposting
• Paragraph structure
• Using sources in your writing

Jump to content on this page:

“Quote” Author, Book

When using numbers in academic writing you need to decide if it’s more appropriate to use a numeral (e.g. 9) or to write the number in words (e.g. nine). It’s worth checking to see if your department has specific advice on this matter, because individual approaches do vary. In the absence of specific advice, here is some general guidance on the matter:

Basic numbers

• Numbers  up to nine  should always be written in  words,  anything higher than nine can be written in numerals. Alternatively, some guides suggest that if you can write the number in two words or fewer then use words rather than numerals. If you are going to take this approach then you should include a hyphen when writing numbers with two words, e.g. twenty-seven.
• For larger numbers, it is acceptable to use either numerals or words depending on context (e.g. a thousand people/1,000 people), but you should always use numerals in technical writing, e.g. 200,000 km. For less precise larger numbers, the written form is better (e.g. several thousand).

Measurements and decimals/fractions

• Use numerals for units of measurement or time, e.g. 500 km, 10 minutes.
• Always use numerals for decimals and fractions (e.g. 0.5 cm) unless the figures are vague (e.g. around half of the population).
• Units of measurement that modify a noun should be hyphenated, e.g. a 3-year-old child.

Dates, money and time

• Always use numerals for dates, e.g Monday 4 April, 2016.
• Use numerals for money (e.g. His pocket money was exactly £1.00 per week) unless the amounts are vague (e.g. He earned well over a million last year).
• Use numerals for indicating the precise time (e.g. 08:00), or words if the times indicated are vague (e.g. around eight o’clock). 

Combining numbers

• If you need to combine two numbers that run together then use words for the shorter number and numerals for the longer number, e.g. a tower of 1000 ten-pence pieces. 

Starting sentences with numbers

• Avoid starting a sentence with a numeral. Either write the number in words or rearrange your sentence. For example, “Three hundred and sixty-five days make one year” could become “There are 365 days in a year”. If you start a sentence with a year, write “The year” first e.g. “The year 1066 saw one of the most famous battles in English history”.
• << Previous: Voice
• Next: Contractions >>
• Last Updated: Jul 4, 2024 10:15 AM
• URL: https://libguides.hull.ac.uk/writing
• Login to LibApps
• Library websites Privacy Policy
• University of Hull privacy policy & cookies
• Website terms and conditions
• Accessibility
• Report a problem

• Readers Read
• Screenwriting
• Songwriting
• Writing Contests

Costco Plans to Sell Books Only From September to December

Karlie Kloss to Relaunch Life Magazine at Bedford Media

NBF Expands National Book Awards Eligibility Criteria

Striking Writers and Actors March Together on Hollywood Streets

Vice Media Files for Chapter 11 Bankruptcy

• Self-publishing
• Technical Writing
• Writing Prompts

MLA Style Guide

• How Do I Format My Paper?
• How Do I Format My Works Cited Page?
• In-Text Citations
• Using Numbers

Using Numbers in an Essay

Spell out numbers that can be expressed in either one or two words.  

•   one million
•   ninety-nine
•   one hundred
•   fifteen hundred

Always spell out the number if a sentence begins with a number.

Example: Two thousand twelve was an election year in the United States.

When Should I Use Numerals?

Use numerals if you are writing an essay about a scientific subject or an essay that includes frequent use of numbers, like statistical findings. 

Always use numerals:

•  in front of units of measurements. Example : 5 millimeters
•  with abbreviations such as 6 lbs., 4:20 p.m., $9, 2”, 4%.
•  in dates: Example: April 1, 2014
•  in decimal fractions: Example: 9.2

Exceptions:  

• For large numbers, you may use a combination of numerals and words. Example: 4.5 million
• In general use numerals with % signs, however, you may spell out percentages or amounts of money if you can do so in three words or less. Example: five dollars, forty-five percent, sixty-eight cents.
• << Previous: Quotations
• Next: Citation Examples >>
• Last Updated: Aug 14, 2023 11:33 AM
• URL: https://micds.libguides.com/mla

• I nfographics
• Show AWL words
• Subscribe to newsletter
• What is academic writing?
• Academic Style
• What is the writing process?
• Understanding the title
• Brainstorming
• Researching
• First draft
• Proofreading
• Report writing
• Compare & contrast
• Cause & effect
• Problem-solution
• Classification
• Essay structure
• Introduction
• Literature review
• Book review
• Research proposal
• Thesis/dissertation
• What is cohesion?
• Cohesion vs coherence
• Transition signals
• What are references?
• In-text citations
• Reference sections
• Reporting verbs
• Band descriptors

Show AWL words on this page.

Levels 1-5:     grey  Levels 6-10:   orange 

Show sorted lists of these words.

Any words you don't know? Look them up in the website's built-in dictionary .

Choose a dictionary .  Wordnet  OPTED  both

Writing numbers When to use words and when to use numerals

It can be difficult to know how to write numbers in academic writing (e.g. five or 5 , 1 million or 1,000,000 ). This section gives some guidelines on when to use words to write numbers, and when to use numerals . There are also some exceptions to the rule which are considered, i.e. times when you might expect to use words but should instead use numerals. There is also a checklist at the end, that you can use to check the use of numbers in your own writing.

When to use words

In general, words should be used for zero to ten , and numerals used from 11 onwards. The same rule should be applied to ordinal numbers, i.e. use words for first, second up to tenth, and numbers plus 'th' (or 'st') from 11th onwards. However, it is always best to check what the accepted practice is at your university (or in your department/on your course), and remember that some common referencing systems have their own, different requirements, as follows.

• MLA . Use words if the number can be written using one or two words (e.g. three , twenty-seven ).
• APA . Use words for numbers zero to nine.
• Chicago . Use words for numbers zero to one hundred.

Before looking at when to use numerals (which is almost all other situations, see next), it is useful to look at important exceptions.

(1) When the number begins a sentence , you should use words , whatever the size of the number (though if possible, rewrite the sentence so the number is not at the beginning).

• Fifty respondents agreed with the statement.
• There were 50 respondents who agreed with the statement. [ rewritten sentence ]
• 50 respondents agreed with the statement.

(2) When expressing part of a very large round number , e.g. million, billion, you should use words for that large number part (it is common to use abbreviations m for million and bn billion ).

• The population of the earth is now in excess of 7 billion people.
• The population of the earth is now in excess of 7bn people.
• The population of the earth is now in excess of 7,000,000,000 people.
• The population of the UK is approximately 70 million.
• The population of the UK is approximately 70,000,000.

Conversely, numerals should be used rather than words, whatever the size of the number, when large and small numbers are combined , since this makes comparisons easier.

• There were 2 respondents in the first category, and 22 in the second.
• There were two respondents in the first category, and 22 in the second.

When to use numerals

Numerals are used for almost all other situations. These include the following.

• Measurements (e.g. 6 kg, 3 cm, 10 min, 2 hr, 3 days, 6 years, 5 decades )
• Currency (e.g. $10, £50, £60 billion )
• Statistical data , including survey data (e.g. A survey of participants revealed that 4 out of 5 students worked. )
• Mathematical functions (e.g. v 2 = u 2 + 2as )
• Decimals (e.g. 2.5, 4.54 )
• Percentages (e.g. 75% )
• Ratios (e.g. 3:1 )
• Percentiles/quartiles (e.g. the 95th percentile, the 1st quartile )
• Times (e.g. 12.30 a.m., 6 p.m., 16:00 )
• Dates (e.g. Wednesday 25 December 2019 )
• Scores/points on a scale (e.g. This item scored 5 on a 9-point scale )

Other important points

The following are a few other points to remember when using numbers.

• Consistency. You should be consistent in how you write numbers; for example, if write a figure like 7bn in one place, do not write a figure like 5 billion in another.
• Use of commas. When giving numerals of 1,000 or larger, use commas for each thousand, e.g. 5,500, 8,326,500 .
• Use of hyphens. When displaying a range, use a hyphen, with no space, e.g. 30%–50%
• Expressing fractions. Fractions can be written either as numerals e.g. 2/3 or words e.g. two-thirds . If using words, use a hyphen.

American Psychological Association (2019a) Numbers Expressed in Words . Available at: https://apastyle.apa.org/style-grammar-guidelines/numbers/words (Accessed: 26 December, 2019).

American Psychological Association (2019b) Numbers Expressed in Numerals . Available at: https://apastyle.apa.org/style-grammar-guidelines/numbers/numerals (Accessed: 26 December, 2019).

Harvard Wiki (2019) Numbers . Available at: https://wiki.harvard.edu/confluence/display/HSG/Numbers . (Accessed: 26 December, 2019).

University of Bristol (2015) Using numbers . Available at: http://www.bristol.ac.uk/arts/exercises/grammar/grammar_tutorial/page_33.htm (Accessed: 26 December, 2019).

University of New England (nd) Numbers in academic writing . Available at: https://aso-resources.une.edu.au/academic-writing/miscellaneous/numbers/ (Accessed: 26 December, 2019).

University of Oxford (2015) Style Guide . Available at: https://www.ox.ac.uk/sites/files/oxford/media_wysiwyg/University%20of%20Oxford%20Style%20Guide.pdf (Accessed: 26 December, 2019).

GET FREE EBOOK

Like the website? Try the books. Enter your email to receive a free sample from Academic Writing Genres .

Below is a checklist for using numbers in academic writing. Use it to check your writing, or as a peer to help.

Next section

Read more about using complex grammar in the next section.

• Complex grammar

Previous section

Go back to the previous section about describing data .

Author: Sheldon Smith    ‖    Last modified: 16 January 2022.

Sheldon Smith is the founder and editor of EAPFoundation.com. He has been teaching English for Academic Purposes since 2004. Find out more about him in the about section and connect with him on Twitter , Facebook and LinkedIn .

Compare & contrast essays examine the similarities of two or more objects, and the differences.

Cause & effect essays consider the reasons (or causes) for something, then discuss the results (or effects).

Discussion essays require you to examine both sides of a situation and to conclude by saying which side you favour.

Problem-solution essays are a sub-type of SPSE essays (Situation, Problem, Solution, Evaluation).

Transition signals are useful in achieving good cohesion and coherence in your writing.

Reporting verbs are used to link your in-text citations to the information cited.

In an essay, when do you spell out numbers and when do you use numerals?

According to APA Style, you should normally use numerals for the numbers 10 and above. You should use words to express numbers below 10 (one, two, three, four, five, six, seven, eight, and nine).

Note, however, that APA lists a wide variety of exceptions. For instance, numbers that appear right before a unit of measurement should be expressed as numerals, regardless of where they fall, before or after 10. Example: Give him 5 cups of soup.

The APA also addresses this question directly in this webpage .

The sections in APA that address numbers are 6.32-6.39 in the 7th edition of the Publication Manual.

• Reading and Writing
• Last Updated Dec 12, 2022
• Views 14422
• Answered By Ashley Librarian

FAQ Actions

• Share on Facebook

Comments (0)

Hello! We're here to help! Please log in to ask your question.

Need an answer now? Search our FAQs !

How can I find my course textbook?

You can expect a prompt response, Monday through Friday, 8:00 AM-4:00 PM Central Time (by the next business day on weekends and holidays).

Questions may be answered by a Librarian, Learning Services Coordinator, Instructor, or Tutor. 

Rules for Writing out Numbers

Reviewing the Rules

• Writing Essays
• Writing Research Papers
• English Grammar
• M.Ed., Education Administration, University of Georgia
• B.A., History, Armstrong State University

Why do so many people find it difficult to remember the rules for using numbers in formal writing ? Probably because the rules seem a little fuzzy sometimes.

So what can you do? It's no mystery: as with anything, read and study the rules several times, and it will all seem natural, eventually.

Writing Numbers One through Ten

Spell out numbers one through ten, as in this example:

• My little brother ate four apples before dinner and became ill.
• Why do parents always check to see if babies have ten toes?

Writing Numbers Above Ten

Spell out numbers above ten, unless writing the number would involve using more than two words. For example:

• I have sixty-three dead bugs in my collection.
• My cousin has 207 bugs in his.
• This site has given me a thousand helpful hints for my homework.
• My grandmother is seventy-two today.
• My little sister had about 4,763 measles on her face.

Always Spell Out Numbers that Begin Sentences

It would look odd to begin a sentence with a numeral.

• Four hundred fifty people attended the birthday party.

However, you should try to avoid using long, clunky numbers at the beginning of a sentence. Instead of writing that four hundred and fifty people attended a party, you could re-write:

• There were 450 people at the party.

Dates, Phone Numbers, and Time

Use numbers for dates:

• My birthday is on March 16.
• He was born on Valentines Day, 1975.

And use numbers for phone numbers:

• The phone number for the school is 800-555-6262
• The international code for England is 44.

And use numbers for telling time if using a.m. or p.m.:

• The alarm will sound at 7 p.m.
• I make my bed at 7 a.m. each morning.

But spell out times when using "o'clock" or when the a.m. or p.m. are omitted:

• The alarm will sound at seven o'clock.
• I make my bed at seven each morning.
• How to Read Numbers in English
• Numbers of Zeros in a Million, Billion, Trillion, and More
• 40 Common English Idioms
• Cardinal Number
• German Numbers and Counting From 0 to 20
• Using the Present Simple for ESL Students
• Telling Time in French
• Absolute Beginner English Telling Time
• Learn Basic Counting and Numbers in Japanese
• 10 Tips for Using Abbreviations Correctly
• 20 Elapsed Time Word Problems
• How To Tell Time in Spanish
• Cohesion Strategies: A List of Transitional Words and Phrases
• Why Insects Invade Your Home in Cold Weather
• Learn to Count to Ten in Greek
• Fun French Number Practice For the Classroom

How to Write Numbers in Word Form in English: A Comprehensive Guide

Writing Numbers in Word Form: A Complete Guide

Want to write numbers in word form but don’t know where to start? It’s easier than you think! Follow a few simple steps, and you’ll be an expert in no time. First, understand the basics of how numbers in word form work. Second, break down the number into smaller parts, such as hundreds, tens, and units. Finally, put it all together in a sentence. Keep reading for a detailed guide.

How to Write Numbers in Word Form

In this section, we’ll break down the steps to convert numerical digits into their word counterparts. Whether you’re writing a check, a formal document, or an essay, knowing how to spell numbers correctly is crucial.

Step 1: Understand the Basic Number Words

Familiarize yourself with word forms for numbers from one to twenty and multiples of ten. These foundational numbers serve as building blocks for writing larger numbers.

Step 2: Break Down the Number into Parts

Divide the number into smaller, more manageable parts—usually by place value. For example, the number 342 is broken down into 300, 40, and 2.

Step 3: Write Each Part in Word Form

Spell out each part individually. For 342, you’d write "three hundred," "forty," and "two."

Step 4: Combine the Parts

Combine the word forms of the parts to form the complete number. So, 342 becomes "three hundred forty-two."

Step 5: Use Hyphens and Commas Appropriately

Remember to use hyphens for numbers between twenty-one and ninety-nine. Commas are used in numbers over one thousand, like "one thousand, two hundred."

After mastering these steps, you’ll be able to write any number in word form accurately and confidently.

Tips for Writing Numbers in Word Form

• Start Small : Begin with smaller numbers to build your confidence.
• Practice Regularly : The more you practice, the more familiar you’ll become with different number forms.
• Use a Number Grammar Guide : Keep a guide handy for complex numbers.
• Double-Check Your Work : Always review to ensure accuracy.
• Learn Common Exceptions : Be aware of exceptions and irregularities, like the word "eleven."

Frequently Asked Questions

What are the basic number words i need to know.

Start with one through twenty, and then learn multiples of ten like thirty, forty, etc.

How do I write a number like 1,234 in word form?

Break it down: one thousand two hundred thirty-four.

Should I use hyphens in numbers?

Yes, use hyphens between twenty-one and ninety-nine.

What about numbers over a million?

Break them down by place value, such as "three million, two hundred thousand."

Are there exceptions to these rules?

Yes, especially with numbers like eleven and twelve, which don’t fit the usual pattern.

• Understand the basic number words.
• Break down the number into parts.
• Write each part in word form.
• Combine the parts.
• Use hyphens and commas appropriately.

And there you have it! Writing numbers in word form doesn’t have to be a daunting task. By following these simple steps—understanding basic number words, breaking down the number, writing each part in word form, combining the parts, and correctly using hyphens and commas—you’ll be well on your way to mastering this skill.

Practice makes perfect, so don’t hesitate to write out numbers whenever you get the chance. Whether you’re jotting down a grocery list or drafting a formal letter, give it a go.

For further reading, you might want to check out guides on specific number-related grammar rules or practice exercises online. Happy writing!

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.

He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.

Read his full bio here .

Share this:

• Click to share on Twitter (Opens in new window)
• Click to share on Facebook (Opens in new window)
• Click to email a link to a friend (Opens in new window)
• Click to share on LinkedIn (Opens in new window)
• Click to share on Reddit (Opens in new window)
• Click to share on Pinterest (Opens in new window)
• Click to share on Tumblr (Opens in new window)

Related posts:

• How to Unlink a Form on Google Sheets: Step-by-Step Guide
• How to Remove Section Breaks in Word Documents
• How to Create a Form in Google Docs
• How to Embed Google Form in Mailchimp: Step-by-Step Guide
• How to Create an Order Form in Google Forms: A Step-by-Step Guide
• How to Write in Hindi in Microsoft Word: A Step-by-Step Guide
• How to Edit a Google Form After Submitting: A Step-by-Step Guide
• How to Add Line Numbers in Microsoft Word: A Step-by-Step Guide
• How to Write a Novel in Google Docs: A Step-by-Step Guide
• How to Add a Page on Google Docs
• How to Not Require Sign In for Google Form: A Step-by-Step Guide
• How to Force a Copy of a Google Form: A Step-by-Step Guide
• How to Create a Fillable PDF Form in Google Docs: A Step-by-Step Guide
• How to Bot a Google Form: Step-by-Step Guide
• How to Curve Text in Word for Office 365
• How to Write Vertically in Word 2013
• How to Make a Google Form Anonymous: A Step-by-Step Guide
• How to Make a Google Form into a QR Code: A Step-by-Step Guide
• How to Add Google Docs Page Numbers
• How to Make a Fillable PDF in Word: Step-by-Step Guide for Beginners

• Election 2024
• Entertainment
• Newsletters
• Photography
• AP Investigations
• AP Buyline Personal Finance
• AP Buyline Shopping
• Press Releases
• Israel-Hamas War
• Russia-Ukraine War
• Global elections
• Asia Pacific
• Latin America
• Middle East
• Election Results
• Delegate Tracker
• AP & Elections
• Auto Racing
• 2024 Paris Olympic Games
• Movie reviews
• Book reviews
• Financial Markets
• Business Highlights
• Financial wellness
• Artificial Intelligence
• Social Media

What it means for the Supreme Court to throw out Chevron decision, undercutting federal regulators

FILE- Gulls follow a commercial fishing boat as crewmen haul in their catch in the Gulf of Maine, in this Jan. 17, 2012 file photo. TExecutive branch agencies will likely have more difficulty regulating the environment, public health, workplace safety and other issues under a far-reaching decision by the Supreme Court. The court’s 6-3 ruling on Friday overturned a 1984 decision colloquially known as Chevron that has instructed lower courts to defer to federal agencies when laws passed by Congress are not crystal clear. (AP Photo/Robert F. Bukaty, File)

The Supreme Court building is seen on Friday, June 28, 2024, in Washington. (AP Photo/Mark Schiefelbein)

• Copy Link copied

WASHINGTON (AP) — Executive branch agencies will likely have more difficulty regulating the environment, public health, workplace safety and other issues under a far-reaching decision by the Supreme Court .

The court’s 6-3 ruling on Friday overturned a 1984 decision colloquially known as Chevron that has instructed lower courts to defer to federal agencies when laws passed by Congress are not crystal clear.

The 40-year-old decision has been the basis for upholding thousands of regulations by dozens of federal agencies, but has long been a target of conservatives and business groups who argue that it grants too much power to the executive branch, or what some critics call the administrative state.

The Biden administration has defended the law, warning that overturning so-called Chevron deference would be destabilizing and could bring a “convulsive shock” to the nation’s legal system.

Chief Justice John Roberts, writing for the court, said federal judges “must exercise their independent judgment in deciding whether an agency has acted within its statutory authority.”

The ruling does not call into question prior cases that relied on the Chevron doctrine, Roberts wrote.

Here is a look at the court’s decision and the implications for government regulations going forward.

What is the Chevron decision?

Atlantic herring fishermen sued over federal rules requiring them to pay for independent observers to monitor their catch. The fishermen argued that the 1976 Magnuson-Stevens Fishery Conservation and Management Act did not authorize officials to create industry-funded monitoring requirements and that the National Marine Fisheries Service failed to follow proper rulemaking procedure.

In two related cases, the fishermen asked the court to overturn the 40-year-old Chevron doctrine, which stems from a unanimous Supreme Court case involving the energy giant in a dispute over the Clean Air Act. That ruling said judges should defer to the executive branch when laws passed by Congress are ambiguous.

In that case, the court upheld an action by the Environmental Protection Agency under then-President Ronald Reagan.

In the decades following the ruling, Chevron has been a bedrock of modern administrative law, requiring judges to defer to agencies’ reasonable interpretations of congressional statutes.

But the current high court, with a 6-3 conservative majority has been increasingly skeptical of the powers of federal agencies. Justices Brett Kavanaugh, Clarence Thomas, Samuel Alito and Neil Gorsuch have questioned the Chevron decision. Ironically, it was Gorsuch’s mother, former EPA Administrator Anne Gorsuch, who made the decision that the Supreme Court upheld in 1984.

What’s at stake?

With a closely divided Congress, presidential administrations have increasingly turned to federal regulation to implement policy changes. Federal rules impact virtually every aspect of everyday life, from the food we eat and the cars we drive to the air we breathe and homes we live in.

President Joe Biden’s administration, for example, has issued a host of new regulations on the environment and other priorities, including restrictions on emissions from power plants and vehicle tailpipes , and rules on student loan forgiveness , overtime pay and affordable housing.

Those actions and others could be opened up to legal challenges if judges are allowed to discount or disregard the expertise of the executive-branch agencies that put them into place.

With billions of dollars potentially at stake, groups representing the gun industry and other businesses such as tobacco, agriculture, timber and homebuilding, were among those pressing the justices to overturn the Chevron doctrine and weaken government regulation.

The U.S. Chamber of Commerce filed an amicus brief last year on behalf of business groups arguing that modern application of Chevron has “fostered aggrandizement’’ of the executive branch at the expense of Congress and the courts.

David Doniger, a lawyer and longtime Natural Resources Defense Council official who argued the original Chevron case in 1984, said he feared that a ruling to overturn the doctrine could “free judges to be radical activists” who could “effectively rewrite our laws and block the protections they are supposed to provide.”

“The net effect will be to weaken our government’s ability to meet the real problems the world is throwing at us — big things like COVID and climate change,″ Doniger said.

More than just fish

“This case was never just about fish,’' said Meredith Moore of the environmental group Ocean Conservancy. Instead, businesses and other interest groups used the herring fishery “to attack the foundations of the public agencies that serve the American public and conserve our natural resources,’' she said.

The court ruling will likely open the floodgates to litigation that could erode critical protections for people and the environment, Moore and other advocates said.

“For more than 30 years, fishery observers have successfully helped ensure that our oceans are responsibly managed so that fishing can continue in the future,’' said Dustin Cranor of Oceana, another conservation group.

He called the case “just the latest example of the far right trying to undermine the federal government’s ability to protect our oceans, waters, public lands, clean air and health.’'

West Virginia Attorney General Patrick Morrisey called the decision a fitting follow-up to a 2022 decision — in a case he brought — that limits the EPA’s ability to control greenhouse gas emissions from power plants. The court held that Congress must speak with specificity when it wants to give an agency authority to regulate on an issue of major national significance.

Morrisey, now the GOP nominee for governor, called Chevron “a misguided doctrine under which courts defer to legally dubious interpretations of statutes put out by federal administrative agencies.”

A shift toward judicial power

The Supreme Court ruling will almost certainly shift power away from the executive branch and Congress and toward courts, said Craig Green, a professor at Temple University’s Beasley School of Law.

“Federal judges will now have the first and final word about what statutes mean,″ he said. “That’s a big shift in power.″

In what some observers see as a historic irony, many conservatives who now attack Chevron once celebrated it. The late Supreme Court Justice Antonin Scalia was among those who hailed the original ruling as a way to rein in liberal laws.

“Conservatives believed in this rule until they didn’t,’' Green said in an interview.

In recent years, conservatives have focused on “deconstruction of the administrative state,’' even if the result lessens the ability of a conservative president to impose his beliefs on government agencies.

“If you weaken the federal government, you get less government,’' Green said — an outcome that many conservatives, including those who back former President Donald Trump, welcome.

The ruling will likely “gum up the works for federal agencies and make it even harder for them to address big problems. Which is precisely what the critics of Chevron want,” said Jody Freeman, director of the environmental and energy law program at Harvard Law School.

Advertisement

Supported by

Trump Widens Lead After Biden’s Debate Debacle, Times/Siena Poll Finds

Donald Trump is ahead of President Biden by six percentage points among likely voters in a new national survey. Overall, 74 percent of voters view Mr. Biden as too old for the job, an uptick since the debate.

• Share full article

THE NEW YORK TIMES/SIENA COLLEGE POLL

June 28 to July 2

If the 2024 presidential election were held today, who would you vote for if the candidates were

Joe Biden and Donald Trump ?

Margin of error

If the 2024 presidential election were held today, who would you vote for if the candidates were Joe Biden and Donald Trump ?

Likely voters

Registered voters

By Shane Goldmacher

Donald J. Trump’s lead in the 2024 presidential race has widened after President Biden’s fumbling debate performance last week, as concerns that Mr. Biden is too old to govern effectively rose to new heights among Democrats and independent voters, a new poll from The New York Times and Siena College showed.

Mr. Trump now leads Mr. Biden 49 percent to 43 percent among likely voters nationally, a three-point swing toward the Republican from just a week earlier, before the debate. It is the largest lead Mr. Trump has recorded in a Times/Siena poll since 2015. Mr. Trump leads by even more among registered voters, 49 percent to 41 percent.

Doubts about Mr. Biden’s age and acuity are widespread and growing. A majority of every demographic, geographic and ideological group in the poll — including Black voters and those who said they will still be voting for him — believe Mr. Biden, 81, is too old to be effective.

[The poll does not show a fundamental change in the race, but it adds to longstanding concerns, Nate Cohn writes .]

Overall, 74 percent of voters view him as too old for the job, up five percentage points since the debate. Concerns about Mr. Biden’s age have spiked eight percentage points among Democrats in the week since the debate, to 59 percent. The share of independent voters who said they felt that way rose to 79 percent, nearly matching the Republican view of the president.

How polls have changed since the debate

The New York Times/Siena College Poll

Do you think Joe Biden should remain the Democratic Party’s nominee for president, or should there be a different Democratic nominee for president?

Independents

Do you think Donald Trump should remain the Republican Party’s nominee for president, or should there be a different Republican nominee for president?

Republicans

We are having trouble retrieving the article content.

Please enable JavaScript in your browser settings.

Thank you for your patience while we verify access. If you are in Reader mode please exit and  log into  your Times account, or  subscribe  for all of The Times.

Thank you for your patience while we verify access.

Already a subscriber?  Log in .

Want all of The Times?  Subscribe .