well ,if you dont have any then you cant measure anything. but if you do,it is the same as measuring a womans
you can get a bra measure from primark
Someone can only tell you your bra size if you get someone in a bra fitting store to measure your breasts with your bra on.
The biggest bra size that us girls can have so far is 38kkk
Well if your talking bra sizes then... A A34 bra size is what most girls 12 to 13 wear. A B36 bra size is the bra size right after the A cup.
You could measure it. if there are tags on the bra that tell you, then look for it.
Measure her.
Your only option is to guess the girl's bra size. If you are not buying her a bra, you don't need to know her bra size. Try to find out something that's important to her instead.
36A, but every one is different
triple z
You measure the rim around your butt. then you take away 6 inches. that's your bra size!
ask someone you trust to measure you (they have to know how to measure) and when there done the math that's your size!!!!!!!!!!!!!
No, but there are preteen bras that would be in the size of an AAA bra size. It would probably be in the size 12-14 bra.