What is normal 10 year old bra size?

An average size for a 10 year old would be 30AA/A. I know this because I'm a 11 year old who is a 30A-I'm in year 6.

However, some of the girls in my class are 28AA/A. I believe that at this age it doesn't matter what size you are due to the fact that you are still developing. My mum told me she was completely flat chested at my age but now she is about 33 and a 38DD.

This proves even though you might not get a flying start you still can have big boobs. No matter what. A 10 year old should wait until there periods to see there actual size.

Hope I Helped! xxx