French Numbers: How to Count 0–1,000+ (2026 Guide)

TLDR

French numbers follow predictable patterns from 0 to 69, but 70 through 99 use a base-20 system that trips up nearly every learner. The key numbers to know are soixante-dix (70, literally “sixty-ten”), quatre-vingts (80, literally “four twenties”), and quatre-vingt-dix (90, literally “eighty-ten”). This guide covers every French number from zero to one billion, with spelling rules, pronunciation tips, regional variants used in Belgium and Switzerland, and real-life examples for phone numbers, prices, and dates.

French numbers are one of the first things beginners look up and one of the last things intermediate learners feel confident about. The counting system from 0 to 69 is straightforward. Then you hit 70, and the rules change completely.

If this shift has ever made you want to quit, you are in good company. Practitioners on Reddit regularly describe the 70-to-99 range as the moment French numbers go from manageable to maddening. One learner said the numbers “make me cry” and replies overwhelmingly advised the same thing: stop doing arithmetic in your head. Learn the forms as names, not equations.

This guide works as both a quick reference chart and a full explanation of the rules, exceptions, and real-world usage that most number lists leave out.

If you’re building French vocabulary through games and active recall, French game apps can turn number drills into something you actually want to repeat.

French Number Vocabulary You Should Know First

Before jumping into the numbers themselves, three French words cause confusion because English only has one word (“number”) where French has three.

Chiffre means digit. The chiffres are 0 through 9, the individual characters used to write numbers. Larousse defines chiffre as a written character representing a number, noting that 147 contains the digits 1, 4, and 7.

Nombre means number. It refers to the quantity itself. So 147 is a nombre made up of three chiffres.

Numéro means an identifying number, like a phone number, page number, room number, or street address. When someone asks for your numéro de téléphone, they want your phone number, not a mathematical value.

Other terms that come up when studying French numbers:

• Cardinal (nombre cardinal): a counting number, like un, deux, trois

• Ordinal (nombre ordinal): a ranking number, like premier, deuxième, troisième

• Trait d’union: hyphen, used extensively in compound numbers

• Liaison: the linking of a normally silent final consonant to a following vowel sound

• Virgule: comma, which French uses as the decimal separator

Quick French Numbers Chart: 0 to 20

These are the building blocks of every French number. The numbers 0 through 16 are irregular and must be memorized individually. Starting at 17, a visible pattern emerges.

Notice that 17, 18, and 19 follow a “ten-seven, ten-eight, ten-nine” pattern. This same logic (base number plus teen number) returns at 70 and 90, which is why 11 through 16 matter so much. The French Experiment breaks numbers into these same chunks because 11 to 16 are the irregular set every learner needs to memorize cold.

French Tens: 10 Through 100

Here are the ten anchor numbers. The first six are simple. The last three are where French gets creative.

How to Build French Numbers from 21 to 69

Once you know the tens, building numbers from 21 to 69 is mostly predictable. The formula is: tens word + unit.

There is one important pattern to watch. Numbers ending in 1 (from 21 through 61) use et un instead of a hyphen:

In traditional spelling, et replaces the hyphen. So it is vingt et un, not vingt-et-un. However, the 1990 French spelling reform allows hyphens between all elements of compound numbers, including those joined by et. Both vingt et un and vingt-et-un are now considered correct. This guide uses traditional spelling in the tables because it remains extremely common, but either form is acceptable.

French Numbers 70 to 99: The Part Everyone Struggles With

This is the section that makes or breaks French number fluency. Understanding why these numbers work the way they do helps at first. But the real goal is to stop calculating and start recognizing them as whole sounds.

70 to 79: The “Sixty-Plus” Pattern

French doesn’t have a unique word for 70. Instead, it builds on 60:

Notice that 71 uses et (soixante et onze), following the same rule as 21, 31, 41, 51, and 61.

80 to 89: The “Four-Twenties” Pattern

Eighty in French is quatre-vingts, literally “four twenties.” This comes from a medieval base-20 counting system. The Académie française explains that this vigesimal system was definitively adopted in the 17th century, even though simpler alternatives existed.

Two critical rules here. First, quatre-vingts takes an s when it stands alone as 80 or directly before a noun, but drops the s before another number: quatre-vingt-un, quatre-vingt-deux, and so on. Second, 81 does not use et. It is quatre-vingt-un, never quatre-vingt et un.

90 to 99: The “Eighty-Plus” Pattern

Ninety combines 80 with the teen numbers, exactly as 70 combines 60 with the teens:

Stop Calculating in Conversation

Understanding the math behind 70, 80, and 90 is useful exactly once: when you first learn how the system works. After that, doing “4 times 20 plus 10 plus 7” every time you hear quatre-vingt-dix-sept will make you late to every conversation.

Experienced learners on Reddit consistently advise treating these forms as fixed number names rather than running mental arithmetic. One thread about reaching “instant number processing” described how numbers with 70, 80, or 90 would interrupt comprehension while watching French TV. The practical replies all pointed toward the same solution: drill the sounds until quatre-vingt-dix simply means 90, no math required.

If you find that traditional flashcard drills make this kind of repetition tedious, a fun alternative to flashcard apps can help you stick with daily practice long enough for the numbers to become automatic.

French Numbers Over 100

Good news: after surviving 70 to 99, French numbers above 100 become much more predictable.

The Plural Rules for Cent and Mille

The OQLF (Office québécois de la langue française) states that vingt and centtake s when multiplied and not immediately followed by another number. As a numeric determiner, mille is always invariable. You write deux mille, never deux milles.

However, million and milliard are nouns, not numeric determiners. This means they behave differently in plural contexts. You write cinq cents millions (with s on both cents and millions) because million is a noun, not a number that would strip the s from the preceding cents.

Pronunciation Tips for French Numbers

Written pronunciation guides for French are inherently approximate. French uses nasal vowels, silent consonants, and liaison rules that have no direct English equivalent. That said, a few traps catch nearly every beginner.

Silent final consonants are everywhere. The t in vingt is typically silent when the word stands alone. The s in quatre-vingts is not pronounced in isolation. The x in deux and six, the t in sept (when followed by a consonant), and the q in cinq (sometimes, in running speech) all behave differently depending on what follows.

Liaison changes everything before vowels. When a number precedes a word starting with a vowel, normally silent final consonants can become audible. Larousse notes that quatre-vingts ans is pronounced with liaison, linking the z sound of the s to ans. The same happens with deux ans (linking /z/) and trois euros (linking /z/).

Listening practice matters more than reading tables. French Today emphasizes that audio-based number training feels entirely different from written tests. Recognizing quatre-vingt-dix-sept at conversational speed is a listening skill, not a reading skill.

The best single piece of pronunciation advice: say French numbers out loud every time you study them. Reading silently builds recognition. Speaking builds production. If you’re learning to say thank you in French or goodbye in French, the same principle applies. Hear it, say it, repeat it.

Regional French Numbers: France, Belgium, and Switzerland

Not all French speakers say soixante-dix for 70 or quatre-vingt-dix for 90. Belgium and Switzerland use simpler alternatives that many learners wish France had adopted.

The Académie française confirms that septante, octante, and nonante appear in all editions of its dictionary and are official in Belgium and Switzerland. The older form octante has been largely replaced by quatre-vingts in Belgium and by huitante in parts of Switzerland.

These regional differences are not trivia. They come up in professional settings. A LinkedIn post by Clémence Garnier described moving from France to Brussels and encountering nonante mille in a meeting, which required a quick mental translation for someone trained on quatre-vingt-dix mille. If you work across Francophone countries, you need passive understanding of all variants even if you only actively use one set.

Practical advice: Learn the France/Québec forms first because they cover the largest number of speakers. But recognize septante, huitante, and nonante when you hear them. And never treat the Belgian or Swiss forms as “wrong.” They are older than the France-standard forms.

Community discussions on Reddit confirm this. Learners ask whether they can use septante and nonante in France, and the consensus is that French people will understand you but may notice the Belgian or Swiss flavor.

French Numbers in Real Life

Knowing the numbers on a chart is step one. Using them at natural speed in real situations is where most learners struggle.

Phone Numbers

In France, phone numbers have ten digits and are written and spoken in pairs. A number like 06 12 34 56 78 is read as: zéro six, douze, trente-quatre, cinquante-six, soixante-dix-huit.

That last pair, soixante-dix-huit, is exactly why phone numbers terrify learners. You are processing five rapid-fire number pairs, and any pair could land in the 70-99 range.

Try reading these aloud:

• 01 45 72 89 93

• 03 20 80 91 64

• 06 58 76 95 42

If you stumbled, that is normal. Phone numbers are a listening and speaking challenge that goes far beyond reading a chart.

Prices and Decimals

French uses a comma where English uses a decimal point. In speech, the word virgule (comma) is used for decimal numbers in many contexts. But for currency, French inserts the currency word between the whole and fractional parts instead of saying virgule.

• 12,50 € = douze euros cinquante

• 3,25 $ = trois dollars vingt-cinq

• 104,2 FM = cent quatre virgule deux

Dates

French dates use cardinal numbers (counting numbers), not ordinal numbers, except for the first of the month.

• January 1 = le premier janvier

• January 2 = le deux janvier

• August 15 = le quinze août

• July 21 = le vingt et un juillet

Writing le deuxième janvier for January 2nd is a common mistake. French only uses premier for the 1st; every other date is a cardinal number.

If you’re also studying Spanish numbers, you’ll notice that Spanish handles dates similarly but has a much simpler counting system from 70 to 99.

Common Mistakes with French Numbers

These are the errors that show up most often in learner writing and speech.

The quatre-vingts vs. quatre-vingt distinction catches even advanced writers. The rule is simple once you know it: s stays only when quatre-vingts is the last numeric element. The moment another number follows, the s disappears.

How to Practice French Numbers Until They Become Automatic

Reading this guide once will give you understanding. Making French numbers automatic requires repeated practice over time. Here is a framework that works.

Step 1: Memorize 0 to 16. These are irregular. There is no shortcut. Use flashcards, write them out, say them aloud.

Step 2: Drill the tens. Get dix through cent into instant recall. Pay extra attention to soixante-dix, quatre-vingts, and quatre-vingt-dix.

Step 3: Practice 21 to 69 with the et un rule. Build numbers by combining tens and units. Remember that 21, 31, 41, 51, and 61 use et un.

Step 4: Treat 70, 80, and 90 as chunks. Understand the math once. Then stop translating. Hear soixante-dix and think “70,” not “60 plus 10.”

Step 5: Listen to random numbers, not ordered counting. Counting from 1 to 100 in sequence gives a false sense of mastery. Random number drills expose the gaps.

Step 6: Practice phone number pairs. This forces you to hear and produce two-digit numbers at speed, including the dreaded 70-99 range.

Step 7: Use spaced repetition. Numbers are vocabulary. Like any vocabulary, they fade without review. Spacing your practice sessions over days and weeks builds long-term retention far better than cramming.

French Today emphasizes that an audio quiz for numbers feels completely different from a written one. The real test is whether you can recognize numbers at conversational speed without pausing to calculate.

If you want to build French vocabulary (including numbers) through short daily sessions with built-in review scheduling, Lingo Legend turns that kind of repetition into a game you can play on your phone.

Why Does French Say “Four-Twenties” for 80?

This question comes up constantly. A long-running thread on French Language StackExchange asks where soixante-dix and quatre-vingts come from, and the interest shows no signs of fading.

The short answer: medieval French used a base-20 (vigesimal) counting system alongside a base-10 system. Over centuries, most of the base-20 forms died out, but quatre-vingts (4 x 20) and soixante-dix (60 + 10) survived in the standard French of France. The Académie française adopted these forms definitively in the 17th century, even though septante, octante, and nonante were already available.

Belgium and Switzerland kept the simpler base-10 forms. A LinkedIn language educator framed quatre-vingt-dix as a common learner “existential crisis” and pointed out that the Belgian and Swiss variants are not slang or shortcuts but legitimate, older alternatives.

For learners, the historical reason matters less than the practical takeaway: the base-20 forms are standard in France and Québec, and that is where the majority of French speakers live. Learn those first. File the history under “interesting but not urgent.”

FAQ

How do you say 70 in French?

In France and Québec, 70 is soixante-dix (literally “sixty-ten”). In Belgium and Switzerland, 70 is septante. Both forms are recognized by the Académie française.

How do you say 80 in French?

Standard French uses quatre-vingts (literally “four twenties”). In parts of Switzerland, you may hear huitante. Belgium generally uses quatre-vingts as well.

How do you say 90 in French?

In France and Québec, 90 is quatre-vingt-dix (literally “eighty-ten”). Belgium and Switzerland use nonante.

Is it quatre-vingt or quatre-vingts?

Use quatre-vingts (with s) for standalone 80 or before a noun: quatre-vingts euros. Drop the s before another number: quatre-vingt-un, quatre-vingt-deux. This rule also applies to cent: deux cents but deux cent un.

Does mille take an s in plural?

No. As a number, mille is always invariable. You write deux mille, trois mille, dix mille, never milles. However, million and milliard are nouns and do take plural s: deux millions, trois milliards.

Do French numbers use hyphens?

Traditional spelling uses hyphens between compound elements under 100 unless they are joined by et (so vingt et un but vingt-deux). The 1990 spelling reform allows hyphens between all elements of compound numbers, including vingt-et-un. Both styles are considered correct.

How do French people say phone numbers?

French phone numbers have ten digits, grouped and spoken in pairs. For example, 06 12 34 56 78 is read as zéro six, douze, trente-quatre, cinquante-six, soixante-dix-huit. This makes rapid listening practice essential, since any pair could fall in the 70-99 range.

Why are French numbers so confusing after 69?

French preserved a base-20 counting system from the medieval period. This means 70 builds on 60 (soixante-dix), 80 is four twenties (quatre-vingts), and 90 builds on 80 (quatre-vingt-dix). The system is logical once you see the pattern, but it requires practice before it feels natural at conversational speed.

Building confidence with French numbers comes down to repetition, not just understanding. Read the chart, learn the rules, then put in the reps. If you want a way to practice French vocabulary that fits into short daily sessions, try Lingo Legend and turn review time into game time.

Expanding beyond numbers? Check out ways to say yes in French to keep building your beginner vocabulary.