Im 15 now but when i was 13 i was 34B , but all girls are different so there isn't a real average (:
B or C
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..
Breast size varies greatly among individuals, so there is no definitive average breast size for an 18-year-old. Factors such as genetics, body weight, and hormonal influences can all impact breast size. It is important to remember that everyone's body is unique and there is no standard or "normal" breast size.
Id say anywhere from 30A-36B
it is posable but You need to see your doctor.
There is no way of telling. Your breasts may continue to grow or they could stop growing at any time.
The average size is a 32 A or 34 A but if you are bigger or smaller its just how your body is growing