i dont think big at all? probably none, like my nine year old sister. i dont think i got breasts until i was 11 or 12!
I am a 11 year old girl and I have no boobs. So really the average size is none. I only have breast buds.
34
32A or 34A would be average bra size for a 12 year old girl.
34B
b or c
1 cm
Its depend upon their body type..
The average breast size would probably be a B. but everyone's different . People start puberty before others do, and some people grow faster.
The average size is a 32 A or 34 A but if you are bigger or smaller its just how your body is growing
Between the ages of 10-12 the average size of a male brain is 1,440 grams and the average size of a female brain is 1,260 grams. The size of a nine year olds brain is only slightly smaller.
Id say anywhere from 30A-36B
depends, if u have big feet