You could measure it. if there are tags on the bra that tell you, then look for it.
You can call your girlfriend and ask for her bra size. If you aren't comfortable asking her, then buy her something that is not a bra.
gross why should you know
You can know a woman's bra size by asking her. If you do not think it is appropriate to ask her for her bra size, then her bra size is probably none of your business.
You can know a friend's bra size by asking her. If you aren't comfortable asking, then it's okay for you not to know.
There is no way to know the correct bra size based on your height. You need to know the measurement around your body at your rib cage (under your breasts) and around the largest part of your breasts.
If your bra makes it hard to breath in, you should wear a larger band size bra. If your boobs don't fit in the cups of your bra, you should wear a larger cup size.
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.
yeah its very normal. a lot of girls in my class wear that size im 11 too but i wear a size 34b or a 34c but i started puberty younger.just plz dont try 2 make yer boobs look bigger than they are i know alot of girls who do that but they will grow
Get yourself fitted.
I doNt know the average, but I am 16 and my bra size is 34B and my girlfriends is the same ( i an a bisexual)
size 8 wow
carrie underwoods bra size is 36 a carrie underwoods bra size is 36 a