This tool spells any number into its French word form (nombres en lettres) — useful for cheques, contracts and learning. It applies the famously tricky French rules automatically and runs entirely in your browser.
How it works
The converter spells each three-digit group and applies metropolitan French conventions:
- 70-79 use soixante-dix (60 + 10..19), and 80-99 use quatre-vingts (4 × 20).
- quatre-vingts keeps its plural -s only when it ends the number — quatre-vingts but quatre-vingt-un.
- The connector et joins a trailing 1 or 11 to a ten (vingt-et-un, soixante-et-onze).
- cent takes an -s when multiplied and final (deux cents) but loses it before another number (deux cent un); mille is invariable.
Example
| Number | French |
|---|---|
| 71 | soixante-et-onze |
| 80 | quatre-vingts |
| 81 | quatre-vingt-un |
| 200 | deux cents |
| 201 | deux cent un |
So 1234 spells out as mille deux cent trente-quatre.
All processing is 100% client-side — your numbers never leave your browser.