多大了

how old

→ 多
phrase Uncommon #11,544
how old Used to ask someone's age. The subject is often omitted when it is clear from context.
CH: 你多大了?
EN: How old are you?

盛熙你看起来可不年轻多大了

Shengxi, you don’t look very young—how old are you?

— 追击者 (2008)

多大了

How old are you?

— 大红灯笼高高挂 (1991)

多大了

How old is she?

— 罗马 (2018)

多大了

How old is he?

— 普通女人 (2017)

我是指孩子多大了

I mean, how old is the child?

— 朱诺 (2007)

你爷爷多大了

How old is your grandpa?

首先朱诺告诉我多大了我在读高中

First, Juno told me how old I was. I was in high school.

— 朱诺 (2007)

phrase Rare #15,500
how old Used to ask someone's age, especially in casual conversation. 多大 literally means “how big,” but in this pattern it means “how old.”
CH: 你妹妹多大了?
EN: How old is your younger sister?

他现在多大了

How old is he now?

— 坠落的审判 (2023)

你父母多大了

How old are your parents?

你儿子多大了

How old is your son?

— 钛 (2021)

第一个问题今年多大了

First question: How old are you this year?

— 阳光灿烂的日子 (1994)

伊萨克叔叔今年多大了

Uncle Isaac, how old are you this year?

— 野草莓 (1957)

告诉我多大了

Tell me how old you are.

多大了

How old is she?

— 完美陌生人 (2016)

你的孩子多大了

How old is your child?