Chinese Numbers Explained

Talking About Age

Back: Hundreds
岁
Before going on to higher numbers let's briefly look at another common application, age:
岁suì
. Now that you know numbers up to 999 you can probably say the age of anyone you are likely to meet, or even most biblical characters! Expressing age is straightforward, Just remember not to try to slip 是 or 有 in there, just say "subject" "number" "years":
Expressing Age
Iforty-twoyears
我四十二岁
wǒsìshíèrsuì
If you're talking about young children, 'half-years' will frequently come up:
Two and a half
shetwoyearshalf
她两岁半
tāliǎngsuìbàn

How To Ask About Someone's Age

It's actually tricker to ask someone's age than to say the age. First off, be careful in general about asking someone's age, it may be considered impolite. If you do ask, how you do it depends mostly on the age of the person you are asking. For children (up to and maybe including the low teens):
Asking Age: Children
youhowold
你几岁
nǐjǐsuì
For most adults, it's expressed a little differently:
Asking Age: Adults
youhow manyyears
你多少岁
nǐduōshǎosuì
The difference is that 几 refers to only a few of something (generally less than 10) and with 多少 the answer could be much larger.

And then there is a more casual way to ask:
Asking Age: Casual
youhowold
你多大
nǐduōdà
Finally, there is a very formal, polite way to ask:
Asking Age: Formal
youhow old
您贵庚
nínguì gēng


How Do I Talk About Age Differences?

If you want to talk about age differences you can use
比bǐ
, which means "compared to". Check out these examples:
How much older are you than little brother?
You(compare)little brotherolderhow manyyears
你比妹妹大几岁
nǐbǐdì dìdàjǐsuì
I am 4 years older than little sister
I(compare)little sisterolderfouryears
我比妹妹大四岁
wǒbǐmèi mèidàsìsuì
I am 3 years younger than big brother
I(compare)big brotherolderfouryears
我比哥哥小三岁
wǒbǐgē gēxiǎosānsuì
For more, check out the expressing age difference entry in the Chinese Grammar Wiki.
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