There is none. Most 10yo has not started puberty yet so no breasts. All girls grow differently so there is really no average.
34A
average would be 32B
32A or 34A would be average bra size for a 12 year old girl.
no but it is not small it is the average '
34B
the average size is AA (double a), my daughter is 14 and she is an A, my 10 year old is AA.
34 CC to a 36 DD
There is no normal bra size for an 11 year old. Since your body is changing and developing , any bra size you are now is okay.
i think an average 13 year old would be a 34 B, but everyone develops differently.
donno lo , i think is a ,or b cup oni...
yes, personally that's bigger than the average i size were i live. Here the size for a regurler 14 year old is B cups
They shouldn't where one. It would be ridiculous . Hope that's helpful.