Question: what bra size is normal for a 17 year old?
Answer: The average bra size for a 16-year old is nearly the same as the average bra size for a 17-year-old. This size is nearly the same as the average bra size of an American woman. Before the mid-1990s, the average bra size in the USA was a 34B. However, the size jumped to a 36C.