Bra size guide and converter


International bra sizesBelow you will find a bra size converter, to convert to international sizes. The first chart converts the band size, and the second converts the cup size. You will also find a bra sizing guide, to find your correct US size.


Please note that these conversion table only give an estimate to your bra size, as sizes may vary between different bra manufacturers.

 

 

 

Convert cup size

Use this table to convert your cup size into international sizes.

USA UKEUROPEFRANCE/SPAINJAPANAUSTRALIA
AA A A A A AA
A B B B B A
B C C C C B
C D D D D C
D DD E E E D
DD E F F F DD
DDD/E F G G G E
F G H H H F
G H I I I G
H I J J J H
I J K K K I

 

 

Convert band size 

Use this table to convert your bra band size into international sizes.

Japanese bra sizes are the same as European sizes, but the cup size are often written first, e.g. C75 instead of 75C.

USA UKEUROPEFRANCE/SPAINJAPANAUSTRALIA
28 28 60 75 60 6
30 30 65 80 65 8
32 32 70 85 70 10
34 34 75 90 75 12
36 36 80 95 80 14
38 38 85 100 85 16
40 40 90 105 90 18
42 42 95 110 95 20
44 44 100 115 100 22
46 46 105 120 105 24
48 48

110

125 110 26

 

 
Find the right bra size 

To find your band size, measure around your body, just underneath your breasts. The measuring tape should be horizontal, and quite snug. The measurement in inches is your band size. If it's an odd number, e.g. 31, your correct size could be both 30 and 32.

To find your cup size, measure around the fullest part of your breasts. Take this bust measurement and subtract the band measurement, e.g. if you measure 31 underneath your breasts, and 34 around, the result is 34-31 = 3. Use the result to find your cup size here:

Cup size = Bust size - Band size:
0 = AA
<1 = A
1 = B
2 = C
3 = D
4 = DD
5 = DDD/E
6 = F
7 = G
8 = H