An average 12 year old wouldn't really have a large measurement, but you don't need to worry. Everyone is different and has different growing speeds. You could have a large measurement now and not grow anymore later or vis versa.
Chest sizes vary from how big you are to how small you are
there really isn't a average we all grow at a different rate like my 9 year old cousin she is a 32c and is in puberty I'm a d something and I'm 12 [turn 13 tomorrow]
About 34 I think not too sure, about small/ medeum clothing is usuall hoped it helped!
5 years boys chest size
DD
38
The average shoe size for a 2 year old girl is a US size 8. This size is in Adult size.
32
The average pant size for a seventeen year old girl is size 10. Nationwide women's average pant size is size 14.
There is no average shoe size for a 15 year old girl. Shoe size can vary and it depends on height.
25 inches
32A or 34A would be average bra size for a 12 year old girl.
That depends on the size of the girls breast and chest measurments.
About a size 231
I am a 11 year old girl and I have no boobs. So really the average size is none. I only have breast buds.
Size 8-12
averege ring size for 24 years old girl
1