Number to Words Converter

Spell out any number in words — “one thousand two hundred thirty-four” — as a cardinal, an ordinal (“twenty-first”) or a check amount (“One thousand two hundred and 50/100 dollars”).

Runs in your browserUpdated
Style

Your data never leaves your computer. All processing happens 100% locally in your browser.

How to use the Number to Words Converter

  1. Type a number — decimals and negatives are fine, and commas are ignored.
  2. Choose words, ordinal or check/currency style, and the case you need.
  3. Copy the result; every style is also listed below for quick comparison.

How numbers are spelled in English

Numbers are read in groups of three digits from the left, each followed by its scale word: thousand, million, billion, trillion and so on (short scale, used in the US and UK today). 1,234,567 is “one million two hundred thirty-four thousand five hundred sixty-seven”. Compound numbers from 21 to 99 take a hyphen: twenty-one, ninety-nine.

“And” or no “and”?

American usage leaves “and” out of whole numbers (“one hundred one”) and keeps it for the decimal point in check writing. British usage puts “and” after hundreds (“one hundred and one”). Turn on British “and” for UK style.

Writing amounts on a check

On checks the dollars are written in words and the cents as a fraction: $1,234.56 becomes “One thousand two hundred thirty-four and 56/100 dollars”. Writing the cents as a fraction and starting with a capital makes the amount hard to alter. The check style does this automatically, and also works for euros, pounds and rupees.

Ordinal numbers

Ordinals give a position: first, second, third, twenty-first, one hundredth. Only the last word changes — “one thousand two hundred thirty-fourth”. Use the ordinal style for dates and rankings in formal writing.

Tools that pair well with the Number to Words Converter

  • Roman Numeral Converter — Convert any number from 1 to 3,999,999 into Roman numerals — or read Roman numerals back as numbers — with a breakdown of every symbol.
  • Percentage Calculator — Seven everyday percentage calculations on one page.
  • Number Base Converter — Type a number in any base and see it in all the others instantly.
  • Case Converter — Paste any text and convert it between 11 letter cases — from Title Case for headlines to camelCase and snake_case for code.

Frequently asked questions

How do you write 1,500 in words?
“One thousand five hundred”. In everyday speech “fifteen hundred” is also common, but on checks and legal documents write “one thousand five hundred”.
How do I write cents on a check?
As a fraction of 100 after the word “and”: $250.75 is “Two hundred fifty and 75/100 dollars”. Choose the Check / currency style to get this format.
Should I use hyphens in numbers?
Yes, for compound numbers from twenty-one to ninety-nine: thirty-two, eighty-seven. Don’t hyphenate “one hundred” or “two thousand”.
How large a number can it convert?
Up to 36 digits before the decimal point (hundreds of decillions) with exact precision, because the digits are processed as text rather than floating-point numbers.
Can I install Number to Words Converter as a web app and use it offline?
Yes. Number to Words Converter is an installable web app (PWA) — installed from your browser, not downloaded from an app store. Click Install app at the top of this page in Chrome or Edge (Windows, macOS, Linux, ChromeOS) or on Android, use Share → Add to Home Screen on iPhone and iPad, or File → Add to Dock in Safari 17+ on a Mac. It then opens in its own window with its own icon, and because it runs entirely in your browser it keeps working offline. Firefox on desktop can’t install web apps. How installing works.

Related tools