Quick Answer
The usual way to say how old are you in French is Quel âge as-tu ? for someone you know, or Quel âge avez-vous ? in polite situations. French speakers say they have an age, so the natural answer is J'ai vingt ans, literally meaning I have twenty years.
| English | French | Pronunciation | Formality |
|---|---|---|---|
| How old are you? | Quel âge as-tu ? | kel ahzh ah-TOO | casual |
| How old are you? | Quel âge avez-vous ? | kel ahzh ah-vay-VOO | polite |
| I am 20 years old. | J'ai vingt ans. | zhay van ahn | casual |
| My birthday is tomorrow. | Mon anniversaire est demain. | mohn ah-nee-vehr-SEHR eh duh-MEHN | casual |
| I am turning 30. | Je vais avoir trente ans. | zhuh vay ah-VWAHR trahnt ahn | casual |
To ask how old are you in French, say Quel âge as-tu ? /kɛl aʒ a ty/ with someone you address as tu /ty/, such as a friend or child. In a polite or formal setting, say Quel âge avez-vous ? /kɛl aʒ ave vu/. To answer, use J'ai vingt ans /ʒe vɛ̃t‿ɑ̃/, literally, “I have twenty years,” not the French equivalent of “I am twenty.”
Age is a basic French conversation topic, but it is also more socially sensitive than many learners expect. This guide gives you the natural question forms, accurate replies, pronunciation, and the cultural judgment to know when it is better not to ask.
French is spoken by an estimated 321 million people worldwide, according to the Organisation internationale de la Francophonie. It has official status in 29 countries and is used across Europe, Africa, the Americas, and the Pacific. That reach means a polite age question can vary slightly by setting, but the grammar remains consistent.
For a strong foundation in opening a conversation before asking anything personal, learn how to say hello in French.
The main French age question
The safest everyday choice depends on whether you use tu /ty/ or vous /vu/. French pronouns carry social information: closeness, age, hierarchy, and professional distance all influence the choice.
Quel âge as-tu ?
Quel âge as-tu ? /kɛl aʒ a ty/ means “How old are you?” when speaking informally to one person. It is suitable for friends, peers, children, many classmates, and relatives.
The structure is worth noticing. Quel /kɛl/ means “what,” âge /aʒ/ means “age,” and as-tu /a ty/ is an inverted form of “do you have.” French asks what age you have.
/kel ahzh ah-TOO/
Literal meaning: What age have you?
“Quel âge as-tu maintenant ?”
How old are you now?
Use this with people you address as tu. It is ordinary with children and friends, but can be too personal with an adult you just met.
The final tu /ty/ is pronounced with the French rounded vowel /y/, not the English vowel in “too.” Shape your lips as if saying “oo,” while trying to say “ee.” For help with this sound, see the French pronunciation guide.
Quel âge avez-vous ?
Quel âge avez-vous ? /kɛl aʒ ave vu/ is the polite version. Use it with a stranger, a customer, a teacher, a colleague you do not know well, or more than one person.
Although vous /vu/ can mean “you all,” this question usually signals respectful singular address when speaking to one adult. The verb is avez /ave/, the vous form of avoir /avwaʁ/, meaning “to have.”
/kel ahzh ah-vay-VOO/
Literal meaning: What age have you?
“Puis-je vous demander quel âge vous avez ?”
May I ask how old you are?
This is grammatically polite, but politeness does not automatically make an age question socially appropriate. Use it when age is relevant.
A longer indirect version, Puis-je vous demander quel âge vous avez ? /pɥi ʒə vu dəmɑ̃de kɛl aʒ vu zave/, means “May I ask how old you are?” It sounds careful and formal, useful in an interview, survey, or administrative conversation.
The word order French speakers use in real conversation
Textbooks often teach inversion, as in Quel âge as-tu ? /kɛl aʒ a ty/. Real spoken French also uses several natural alternatives.
Tu as quel âge ?
Tu as quel âge ? /ty a kɛl aʒ/ is very common in conversation. It has normal subject-verb order, then places quel âge /kɛl aʒ/ at the end.
This pattern can carry a little extra focus or surprise. A parent looking at an unusually tall child, for example, might ask Tu as quel âge ? /ty a kɛl aʒ/.
Vous avez quel âge ?
Vous avez quel âge ? /vu zave kɛl aʒ/ is the corresponding polite spoken form. It is common, direct, and less formal-sounding than inversion.
In a professional situation, a French speaker may soften it with Vous avez quel âge, si ce n'est pas indiscret ? /vu zave kɛl aʒ si sə nɛ pa z‿ɛ̃diskʁɛ/. The ending means “if it is not indiscreet.”
T'as quel âge ?
T'as quel âge ? /ta kɛl aʒ/ is the very casual contraction of Tu as quel âge ? /ty a kɛl aʒ/. You will hear it in films, TV series, and among friends.
Do not use t'as /ta/ in a formal email, interview, or first conversation with someone you should address as vous /vu/. It is useful to recognize, though, because contracted speech is everywhere in real French dialogue.
💡 A useful listening pattern
In fast speech, tu as /ty a/ frequently becomes t'as /ta/. Train your ear to hear both forms as the same question. Movie and TV clips are especially useful because you can replay the line while watching the speaker's expression and situation.
How to answer with your age in French
The key rule is simple: use a form of avoir /avwaʁ/, not être /ɛtʁ/. English says “I am 25,” but French says J'ai vingt-cinq ans /ʒe vɛ̃ sɛ̃k‿ɑ̃/, literally “I have 25 years.”
J'ai ... ans
Use J'ai /ʒe/ plus your number plus ans /ɑ̃/. The word ans /ɑ̃/ has a nasal vowel and its final written letters are not pronounced separately.
| English | French | IPA |
|---|---|---|
| I am 10 years old. | J'ai dix ans. | /ʒe dis ɑ̃/ |
| I am 16 years old. | J'ai seize ans. | /ʒe sɛz ɑ̃/ |
| I am 18 years old. | J'ai dix-huit ans. | /ʒe diz‿ɥit‿ɑ̃/ |
| I am 20 years old. | J'ai vingt ans. | /ʒe vɛ̃t‿ɑ̃/ |
| I am 25 years old. | J'ai vingt-cinq ans. | /ʒe vɛ̃ sɛ̃k‿ɑ̃/ |
| I am 30 years old. | J'ai trente ans. | /ʒe tʁɑ̃t‿ɑ̃/ |
A liaison often appears before a vowel. In J'ai vingt ans /ʒe vɛ̃t‿ɑ̃/, the final /t/ of vingt /vɛ̃/ is pronounced because ans /ɑ̃/ begins with a vowel sound. This is why the phrase sounds more connected than its spelling suggests.
/zhay van sank ahn/
Literal meaning: I have twenty-five years.
“J'ai vingt-cinq ans et je travaille à Lyon.”
I am 25 years old and I work in Lyon.
This is the standard answer at any level of formality. The grammar does not change when you speak respectfully.
For numbers, review French numbers from 1 to 100. Accurate numbers matter here because age is one setting where a small pronunciation error can change factual information.
Il a, elle a, and on a
To state somebody else’s age, use Il a /il a/ for “he is,” elle a /ɛl a/ for “she is,” or on a /ɔ̃n a/ for “we are” in everyday French.
- Il a huit ans. /il a ɥit‿ɑ̃/, “He is eight.”
- Elle a quarante ans. /ɛl a kaʁɑ̃t‿ɑ̃/, “She is 40.”
- On a le même âge. /ɔ̃n a lə mɛm aʒ/, “We are the same age.”
With a baby, you may hear age given in months: Il a dix mois. /il a dis mwa/, “He is ten months old.” For very young children, months can remain relevant much longer than they would in English conversation.
Talking about birthdays and future ages
French offers several natural ways to talk about an age that is about to change. These phrases are useful at parties, in birthday messages, and when discussing plans.
J'ai eu ... ans
Use J'ai eu /ʒe y/ to say the age you turned in the past. For example, J'ai eu trente ans le mois dernier /ʒe y tʁɑ̃t‿ɑ̃ lə mwa dɛʁnje/ means “I turned 30 last month.”
The verb is still avoir /avwaʁ/, but it is in the past tense. The phrase marks the birthday event rather than simply your current age.
Je vais avoir ... ans
Je vais avoir trente ans /ʒə vɛ avwaʁ tʁɑ̃t‿ɑ̃/ means “I am going to turn 30.” It can refer to an upcoming birthday or a more distant future, depending on context.
/zhuh vay ah-VWAHR trahnt ahn/
Literal meaning: I am going to have thirty years.
“Le mois prochain, je vais avoir trente ans.”
Next month, I am turning 30.
Use this for an upcoming birthday. French speakers often say the month or date when the birthday is near.
Mon anniversaire est demain
Mon anniversaire est demain /mɔ̃n anivɛʁsɛʁ ɛ dəmɛ̃/ means “My birthday is tomorrow.” In French, anniversaire /anivɛʁsɛʁ/ can refer to a birthday but also to an anniversary, so context does the work.
To ask someone’s birthday date, say C'est quand, ton anniversaire ? /sɛ kɑ̃ tɔ̃n anivɛʁsɛʁ/ informally. In polite speech, use C'est quand, votre anniversaire ? /sɛ kɑ̃ vɔtʁ anivɛʁsɛʁ/.
Is asking age polite in France?
Age is not forbidden as a topic, but it is not always small talk. A child may be asked their age casually. Adults may discuss age among friends, at a birthday, when sharing life experiences, or where eligibility matters.
With an adult you just met, the question can feel intrusive, especially if there is no reason for it. French politeness involves more than selecting vous /vu/. Brown and Levinson’s work on politeness explains why personal questions can threaten a person’s social comfort even when phrased grammatically well.
French linguist Catherine Kerbrat-Orecchioni examines how interactional norms shape what speakers consider appropriate in conversation. In practice, a French speaker may wait for age to arise naturally rather than ask immediately.
🌍 Age, work, and administrative contexts
In France and other French-speaking settings, age may be expected on forms, in healthcare, school enrollment, and legal or eligibility discussions. In social conversation, however, asking an adult's age without context can sound overly direct. A simple reason makes the question easier to receive.
If you need the information, state why first. For example: C'est pour savoir si vous pouvez participer /sɛ puʁ savwaʁ si vu puve paʁtisipe/, “It is to know whether you can participate.” Context makes the question practical rather than personal.
The distinction between tu /ty/ and vous /vu/ also matters. For a fuller explanation of when French speakers change register, see our guide to French greetings for every situation.
Common mistakes to avoid
Do not say Je suis vingt ans
Je suis vingt ans is incorrect. Je suis /ʒə sɥi/ means “I am,” but French age requires avoir /avwaʁ/: J'ai vingt ans /ʒe vɛ̃t‿ɑ̃/.
This is one of the most predictable errors for English speakers. Grevisse and Goosse’s Le Bon Usage treats avoir /avwaʁ/ as the normal French verb for expressions of age, alongside other states English may phrase differently.
Do not translate word by word
Avoid a literal construction such as Combien vieux es-tu ? It is not how French asks a person’s age. The normal noun is âge /aʒ/, and the established question is Quel âge as-tu ? /kɛl aʒ a ty/.
The adjective vieux /vjø/ means “old,” but it describes people or things, as in un vieux livre /œ̃ vjø livʁ/, “an old book.” It does not build the everyday age question.
Do not use tu with everyone
Quel âge as-tu ? /kɛl aʒ a ty/ is correct grammar, but it may be socially wrong if you need vous /vu/. When unsure, begin with Bonjour /bɔ̃ʒuʁ/ and use Quel âge avez-vous ? /kɛl aʒ ave vu/ only if asking is relevant.
Do not force the question into every introduction
French introductions usually prioritize a name, a connection, work or study, and shared context. Age is rarely the first question between adults. A natural opening and a French goodbye that matches the setting will do more for your conversational impression than asking personal details too soon.
Practice with realistic mini-dialogues
Friends meeting after school
A: Tu as quel âge déjà ? /ty a kɛl aʒ deʒa/
B: J'ai dix-sept ans. Et toi ? /ʒe dis sɛt‿ɑ̃ e twa/
A: Moi, j'ai dix-huit ans. /mwa ʒe diz‿ɥit‿ɑ̃/
The word déjà /deʒa/ means “again” or “already” here. It shows the speaker thinks they may have asked before.
A child at a family gathering
A: Quel âge as-tu ? /kɛl aʒ a ty/
B: J'ai neuf ans. /ʒe nœv ɑ̃/
A: Ah, tu es grand pour ton âge ! /a ty ɛ ɡʁɑ̃ puʁ tɔ̃n aʒ/
The final sentence means “You are tall for your age.” Notice that tu es /ty ɛ/ is correct because it describes height, while j'ai neuf ans /ʒe nœv ɑ̃/ uses avoir /avwaʁ/ for age.
A polite administrative conversation
A: Bonjour, quel âge avez-vous ? /bɔ̃ʒuʁ kɛl aʒ ave vu/
B: J'ai vingt-deux ans. /ʒe vɛ̃ dø zɑ̃/
A: Merci. /mɛʁsi/
This exchange is natural when age has a clear administrative purpose. The formal vocabulary is not complicated, but the reason for the question makes it appropriate.
The essential rule to remember
Use Quel âge as-tu ? /kɛl aʒ a ty/ with people you know and Quel âge avez-vous ? /kɛl aʒ ave vu/ when polite address is needed. Answer with J'ai ... ans /ʒe ... ɑ̃/, because French says you “have” an age.
Learn the grammar, then match it to the relationship and context. Real clips make that social judgment easier to hear: you can notice when characters choose tu /ty/, when they choose vous /vu/, and when they avoid asking altogether.
Frequently Asked Questions
How do you say how old are you in French?
Why do French speakers say j'ai instead of je suis for age?
Is it rude to ask someone their age in French?
How do I say I am 18 years old in French?
What is the difference between quel âge as-tu and tu as quel âge?
Sources & References
- Organisation internationale de la Francophonie, La langue française dans le monde, accessed 2026
- Académie française, Dire, ne pas dire: âge et avoir, accessed 2026
- CNRTL, Trésor de la langue française informatisé: âge, accessed 2026
- Grevisse and Goosse, Le Bon Usage, De Boeck Supérieur
- Brown and Levinson, Politeness: Some Universals in Language Usage, Cambridge University Press
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