Number to Words
Convert numbers to words in English or French, with the correct French spelling rules and a cheque format that writes dollars, euros and cents.
How to convert a number to words
- Type a number in the Number or amount box. You can write
1234,1,234.56,1 234,56or even$1,234.56. - Choose the Output language: English or French.
- Pick a Format: Number in words for plain text, or Cheque amount to write a sum of money.
- For a cheque, choose the Currency and how to write the Cents: in words, or as a fraction such as 56/100.
- Read the result, check the “Read as” line to make sure the number was understood correctly, then copy it.
The result updates as you type. The Convert button simply refreshes it.
Writing numbers in English
This tool follows the usual North American style: 1,234 becomes “one thousand two hundred thirty-four”. Compound numbers from 21 to 99 take a hyphen (twenty-one, ninety-nine), and scale words stay singular: “two million”, never “two millions”.
Tick British style to add “and” the way it is written in the UK, Ireland or Australia: “one hundred and five”, “two thousand and one”. Large numbers use the short scale (million, billion, trillion, quadrillion), and the tool handles anything below one quintillion, which is 18 digits.
Decimals are read digit by digit after the word “point”: 3.14 becomes “three point one four”. Negative numbers start with “minus”.
Writing numbers in French
French spelling has several rules that trip up even native speakers, and this tool applies all of them:
- “et un”: 21, 31, 41, 51, 61 and 71 use “et”: vingt et un, soixante et onze. But 81 and 91 don’t: quatre-vingt-un, quatre-vingt-onze.
- 70, 80 and 90: soixante-dix, quatre-vingts, quatre-vingt-dix in France and Canada. The French variant option switches to septante and nonante (Belgium) or septante, huitante and nonante (Switzerland).
- Plural of vingt and cent: they take an “s” when they are multiplied and end the number (quatre-vingts, deux cents), but not when another number follows (deux cent un, quatre-vingt-trois).
- Before mille: vingt and cent stay singular, because “mille” is itself a number: deux cent mille, quatre-vingt mille.
- Before million and milliard: these are nouns, so the “s” comes back: deux cents millions, quatre-vingts millions.
- Mille is invariable and is never preceded by “un”: mille, deux mille, trois mille.
The 1990 spelling option applies the reformed spelling (orthographe rectifiée), which links every numeral with a hyphen: vingt-et-un, deux-cent-mille. Million and milliard stay separate words because they are nouns.
Writing an amount on a cheque
In Cheque amount mode, the tool writes the currency and the cents, and starts with a capital letter so the text is ready to copy onto the cheque:
1234.56in words: “One thousand two hundred thirty-four dollars and fifty-six cents”.1234.56as a fraction: “One thousand two hundred thirty-four and 56/100 dollars”, the format printed on most North American cheques.- In French: “Mille deux cent trente-quatre euros et cinquante-six centimes”.
French grammar is respected here too: “un million d’euros”, “deux millions de dollars”, “un euro” but “deux euros”, and “vingt et une livres” because “livre” is feminine. Amounts with more than two decimals are rounded to the nearest cent.
Frequently asked questions
How do I write 1,234.56 on a cheque?
Write “One thousand two hundred thirty-four and 56/100 dollars”, or “One thousand two hundred thirty-four dollars and fifty-six cents”. Both are accepted. The fraction style is shorter and is the one most banks show in their examples.
Is it "quatre-vingt" or "quatre-vingts"?
“Quatre-vingts” when it ends the number (80 euros = quatre-vingts euros) or comes before million or milliard. “Quatre-vingt” when a number follows (quatre-vingt-cinq) or before mille (quatre-vingt mille).
Why doesn't "mille" take an s?
“Mille” is an invariable numeral adjective, so it never changes: deux mille, dix mille. Million and milliard are nouns and do take the plural.
Should I use "and" in English numbers?
In American English, “and” is usually left out of whole numbers (one hundred five). British English includes it (one hundred and five). Both are correct; choose the style your readers expect.
Why does "1,234" give a different result in French?
With French selected, a comma is a decimal separator, so 1,234 is read as 1.234. Write 1 234 or 1234 for one thousand two hundred thirty-four. The “Read as” line always shows how your number was interpreted.
What is the largest number supported?
Up to 999,999,999,999,999,999 (18 digits) for the whole part, and up to 12 decimal places in plain words mode.
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