400 in French
400 in Other Languages
About 400 in French
To say 400 in French, you use quatre cents. The ordinal form — used for rankings, dates, and sequences — is quatre centième.
400 is an even number. Being able to recognize and say 400 in French pays off quickly — numbers like this appear in prices, schedules, addresses, and introductions.
Knowing 400 in French is more useful than it might seem. Numbers are woven into nearly every type of conversation, and fluency with them makes everything from shopping to socializing dramatically easier.
Learning Numbers in French
What makes French numbers challenging
The base-20 system for 70-99 requires mental arithmetic while listening: quatre-vingt-douze is literally "four-twenty-twelve" (92). Phone numbers are always dictated in pairs, meaning you need instant comprehension of every two-digit number 00-99 — including the tricky 70-99 range. The pace of French phone number dictation is fast, with five pairs rattled off in a natural rhythm. Liaison (sound linking between words) can make number boundaries hard to detect.
Tips for learning French numbers
Master two-digit numbers 00-99 before anything else — French phone numbers demand it. Drill the 70-99 range especially: soixante-dix (70), quatre-vingts (80), quatre-vingt-dix (90). Practice listening to phone numbers dictated in pairs, starting slowly and increasing speed. French TV and radio ads often include phone numbers, making them excellent free practice material. If visiting Belgium or Switzerland, note the simpler septante/huitante/nonante system.