Number to words (and words to number)

Type a number to get it written out in words, or type the words to get the digits back. The tool follows the language of the page and applies its spelling rules: hyphenated compounds in English, accord rules in French, joined words in German, apocope in Spanish, elision in Italian. It is handy for contracts, cheques, spelling practice, language learning and screen-reader text.

The whole part is spelled out word by word: 1,234 becomes "one thousand two hundred thirty-four". Decimals are read digit by digit after "point", so 3.14 is "three point one four" and 3.05 keeps its zero ("three point zero five"). Negative numbers start with "minus". Euro mode splits the amount into euros and cents, rounded to the cent.

In English, compounds from 21 to 99 take a hyphen ("twenty-one", "ninety-six"), and the tool writes "one hundred one" without "and", the American style; the British form "one hundred and one" adds "and" by hand. English uses the short scale: a billion is 10^9 and a trillion is 10^12. The tool accepts values below one trillion (up to 999,999,999,999).

Other languages have their own traps, shown when you switch the page language. French: "quatre-vingts" with an s at the end, "quatre-vingt-un" without. German writes numbers under a million as one word and reverses units and tens ("einundzwanzig"). Spanish shortens "uno" before a noun ("veintiún mil") and says "cien" only for exactly 100. Italian drops vowels ("ventuno"). Portuguese adds "e" ("mil e duzentos").

To convert words into digits, type the number in the language of the page, with or without hyphens. The result uses a decimal point, and the tool reports when the text cannot be interpreted.