Bra size guide

Find the right band size

To find your band size, put on a non-padded bra that fits you well. Find a measuring tape, and stand in front of a mirror. Wrap the tape around your body just underneath your bust. The measuring tape should be horizontal to the floor, and quite snug.

The measurement in inches is your band size. If it’s an odd number, round down to the nearest even number.

To find your bust size, measure around the fullest part of your breasts. Take this 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

Please note that this guide only gives you an estimate to your bra size, as sizes may vary between different bra manufacturers.


Convert to international cup size

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

USAUKEuropeFrance/SpainJapanAustralia
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ABBBBA
BCCCCB
CDDDDC
DDDEEED
DDEFFFDD
DDD/EFGGGE
FGHHHF
GHIIIG
HIJJJH
IJKKKI

Convert to international 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.

USAUKEuropeFrance/SpainJapanAustralia
28286075606
30306580658
323270857010
343475907512
363680958014
3838851008516
4040901059018
4242951109520
444410011510022
464610512010524
484811012511026