How Can You Tell What Age A Hamster Is?

Well, I've been researching for when I'm getting my hamster in a hour today, (I've been researching for 3 days) I've learned that you could tell by the hairs on the ears. If it's white, they're about a couple months to 1 year old. If it's black, then it's older than a year old. Hope it helped. :)

If you look at the hamsters teeth if they are long and white/brown they are around 1-2 1/2 years old if they have short white teeth they are 1 day to 1 year old. If they have short brown teeth they are still 1- 1/12 years old but are not looked after properly... Hope this helped

Seeing how small in size. If it is about 2 inches it should be a couple months if it is almost five inches or more it could be a year or older.

The average life span of a hamster is 1.5 years.  It is very hard to tell how old a hamster is especially after it reaches maturity which happens fast.  Decreased activity and onset of health issues may be clues your hamster is older.

I'm pretty sure you can tell by the size, or how active it is...sorry thats all I have for now but ill do more research.

I want to know it too ..... But I forgot to ask the man in that shop