How are cup letters calculated?

Cup is derived from the bust-minus-band difference and mapped to the appropriate regional cup array.

How are sizes converted?

We map every input to a canonical body or foot measurement and then apply deterministic regional rounding rules.

Yes. Consult the brand pages. We apply conservative overrides where variation is common.

What if my result seems off?

Use the feedback button near your result to tell us the input and expected output. We review and adjust brand exceptions where appropriate.

Bras size chart – women

Standard size conversions based on body measurements. See Methodology for details.

Measurement	US	EU	UK	JP	KR	CN	IN	AU	CA	MX	BR	RU
33cm bust, 28cm band	28AA	60AA	28AA	60AA	60AA	60AA	28AA	28AA	28AA	60AA	60AA	60AA
28cm bust, 28cm band	28A	60A	28A	60A	60A	60A	28A	28A	28A	60A	60A	60A
31cm bust, 28cm band	28B	60B	28B	60B	60B	60B	28B	28B	28B	60B	60B	60B
33cm bust, 28cm band	28C	60C	28C	60C	60C	60C	28C	28C	28C	60C	60C	60C
36cm bust, 28cm band	28D	60D	28D	60D	60D	60D	28D	28D	28D	60D	60D	60D
38cm bust, 28cm band	28DD	60E	28DD	60E	60E	60E	28DD	28DD	28DD	60E	60E	60E
41cm bust, 28cm band	28DDD	60E	28E	60E	60E	60E	28E	28E	28DDD	60E	60E	60E
43cm bust, 28cm band	28G	60G	28F	60G	60G	60G	28F	28F	28G	60G	60G	60G
35cm bust, 30cm band	30AA	65AA	30AA	65AA	65AA	65AA	30AA	30AA	30AA	65AA	65AA	65AA
30cm bust, 30cm band	30A	65A	30A	65A	65A	65A	30A	30A	30A	65A	65A	65A
33cm bust, 30cm band	30B	65B	30B	65B	65B	65B	30B	30B	30B	65B	65B	65B
35cm bust, 30cm band	30C	65C	30C	65C	65C	65C	30C	30C	30C	65C	65C	65C
38cm bust, 30cm band	30D	65D	30D	65D	65D	65D	30D	30D	30D	65D	65D	65D
40cm bust, 30cm band	30DD	65E	30DD	65E	65E	65E	30DD	30DD	30DD	65E	65E	65E
43cm bust, 30cm band	30DDD	65E	30E	65E	65E	65E	30E	30E	30DDD	65E	65E	65E
45cm bust, 30cm band	30G	65G	30F	65G	65G	65G	30F	30F	30G	65G	65G	65G
37cm bust, 32cm band	32AA	70AA	32AA	70AA	70AA	70AA	32AA	32AA	32AA	70AA	70AA	70AA
32cm bust, 32cm band	32A	70A	32A	70A	70A	70A	32A	32A	32A	70A	70A	70A
35cm bust, 32cm band	32B	70B	32B	70B	70B	70B	32B	32B	32B	70B	70B	70B
37cm bust, 32cm band	32C	70C	32C	70C	70C	70C	32C	32C	32C	70C	70C	70C
40cm bust, 32cm band	32D	70D	32D	70D	70D	70D	32D	32D	32D	70D	70D	70D
42cm bust, 32cm band	32DD	70E	32DD	70E	70E	70E	32DD	32DD	32DD	70E	70E	70E
45cm bust, 32cm band	32DDD	70F	32E	70F	70F	70F	32E	32E	32DDD	70F	70F	70F
47cm bust, 32cm band	32G	70G	32F	70G	70G	70G	32F	32F	32G	70G	70G	70G
39cm bust, 34cm band	34AA	75AA	34AA	75AA	75AA	75AA	34AA	34AA	34AA	75AA	75AA	75AA
34cm bust, 34cm band	34A	75A	34A	75A	75A	75A	34A	34A	34A	75A	75A	75A
37cm bust, 34cm band	34B	75B	34B	75B	75B	75B	34B	34B	34B	75B	75B	75B
39cm bust, 34cm band	34C	75C	34C	75C	75C	75C	34C	34C	34C	75C	75C	75C
42cm bust, 34cm band	34D	75D	34D	75D	75D	75D	34D	34D	34D	75D	75D	75D
44cm bust, 34cm band	34DD	75E	34DD	75E	75E	75E	34DD	34DD	34DD	75E	75E	75E
47cm bust, 34cm band	34DDD	75F	34E	75F	75F	75F	34E	34E	34DDD	75F	75F	75F
49cm bust, 34cm band	34G	75G	34F	75G	75G	75G	34F	34F	34G	75G	75G	75G
41cm bust, 36cm band	36AA	80AA	36AA	80AA	80AA	80AA	36AA	36AA	36AA	80AA	80AA	80AA
36cm bust, 36cm band	36A	80A	36A	80A	80A	80A	36A	36A	36A	80A	80A	80A
39cm bust, 36cm band	36B	80B	36B	80B	80B	80B	36B	36B	36B	80B	80B	80B
41cm bust, 36cm band	36C	80C	36C	80C	80C	80C	36C	36C	36C	80C	80C	80C
44cm bust, 36cm band	36D	80D	36D	80D	80D	80D	36D	36D	36D	80D	80D	80D
46cm bust, 36cm band	36DD	80E	36DD	80E	80E	80E	36DD	36DD	36DD	80E	80E	80E
49cm bust, 36cm band	36DDD	80F	36E	80F	80F	80F	36E	36E	36DDD	80F	80F	80F
51cm bust, 36cm band	36G	80G	36F	80G	80G	80G	36F	36F	36G	80G	80G	80G
43cm bust, 38cm band	38AA	85AA	38AA	85AA	85AA	85AA	38AA	38AA	38AA	85AA	85AA	85AA
38cm bust, 38cm band	38A	85A	38A	85A	85A	85A	38A	38A	38A	85A	85A	85A
41cm bust, 38cm band	38B	85B	38B	85B	85B	85B	38B	38B	38B	85B	85B	85B
43cm bust, 38cm band	38C	85C	38C	85C	85C	85C	38C	38C	38C	85C	85C	85C
46cm bust, 38cm band	38D	85D	38D	85D	85D	85D	38D	38D	38D	85D	85D	85D
48cm bust, 38cm band	38DD	85E	38DD	85E	85E	85E	38DD	38DD	38DD	85E	85E	85E
51cm bust, 38cm band	38DDD	85F	38E	85F	85F	85F	38E	38E	38DDD	85F	85F	85F
53cm bust, 38cm band	38G	85G	38F	85G	85G	85G	38F	38F	38G	85G	85G	85G
45cm bust, 40cm band	40AA	90AA	40AA	90AA	90AA	90AA	40AA	40AA	40AA	90AA	90AA	90AA
40cm bust, 40cm band	40A	90A	40A	90A	90A	90A	40A	40A	40A	90A	90A	90A
43cm bust, 40cm band	40B	90B	40B	90B	90B	90B	40B	40B	40B	90B	90B	90B
45cm bust, 40cm band	40C	90C	40C	90C	90C	90C	40C	40C	40C	90C	90C	90C
48cm bust, 40cm band	40D	90D	40D	90D	90D	90D	40D	40D	40D	90D	90D	90D
50cm bust, 40cm band	40DD	90E	40DD	90E	90E	90E	40DD	40DD	40DD	90E	90E	90E
53cm bust, 40cm band	40DDD	90F	40E	90F	90F	90F	40E	40E	40DDD	90F	90F	90F
55cm bust, 40cm band	40G	90G	40F	90G	90G	90G	40F	40F	40G	90G	90G	90G
47cm bust, 42cm band	42AA	95AA	42AA	95AA	95AA	95AA	42AA	42AA	42AA	95AA	95AA	95AA
42cm bust, 42cm band	42A	95A	42A	95A	95A	95A	42A	42A	42A	95A	95A	95A
45cm bust, 42cm band	42B	95B	42B	95B	95B	95B	42B	42B	42B	95B	95B	95B
47cm bust, 42cm band	42C	95C	42C	95C	95C	95C	42C	42C	42C	95C	95C	95C
50cm bust, 42cm band	42D	95D	42D	95D	95D	95D	42D	42D	42D	95D	95D	95D
52cm bust, 42cm band	42DD	95E	42DD	95E	95E	95E	42DD	42DD	42DD	95E	95E	95E
55cm bust, 42cm band	42DDD	95F	42E	95F	95F	95F	42E	42E	42DDD	95F	95F	95F
57cm bust, 42cm band	42G	95G	42F	95G	95G	95G	42F	42F	42G	95G	95G	95G
49cm bust, 44cm band	44AA	100AA	44AA	100AA	100AA	100AA	44AA	44AA	44AA	100AA	100AA	100AA
44cm bust, 44cm band	44A	100A	44A	100A	100A	100A	44A	44A	44A	100A	100A	100A
47cm bust, 44cm band	44B	100B	44B	100B	100B	100B	44B	44B	44B	100B	100B	100B
49cm bust, 44cm band	44C	100C	44C	100C	100C	100C	44C	44C	44C	100C	100C	100C
52cm bust, 44cm band	44D	100D	44D	100D	100D	100D	44D	44D	44D	100D	100D	100D
54cm bust, 44cm band	44DD	100E	44DD	100E	100E	100E	44DD	44DD	44DD	100E	100E	100E
57cm bust, 44cm band	44DDD	100F	44E	100F	100F	100F	44E	44E	44DDD	100F	100F	100F
59cm bust, 44cm band	44G	100G	44F	100G	100G	100G	44F	44F	44G	100G	100G	100G
51cm bust, 46cm band	46AA	105AA	46AA	105AA	105AA	105AA	46AA	46AA	46AA	105AA	105AA	105AA
46cm bust, 46cm band	46A	105A	46A	105A	105A	105A	46A	46A	46A	105A	105A	105A
49cm bust, 46cm band	46B	105B	46B	105B	105B	105B	46B	46B	46B	105B	105B	105B
51cm bust, 46cm band	46C	105C	46C	105C	105C	105C	46C	46C	46C	105C	105C	105C
54cm bust, 46cm band	46D	105D	46D	105D	105D	105D	46D	46D	46D	105D	105D	105D
56cm bust, 46cm band	46DD	105E	46DD	105E	105E	105E	46DD	46DD	46DD	105E	105E	105E
59cm bust, 46cm band	46DDD	105F	46E	105F	105F	105F	46E	46E	46DDD	105F	105F	105F
61cm bust, 46cm band	46G	105G	46F	105G	105G	105G	46F	46F	46G	105G	105G	105G
53cm bust, 48cm band	48AA	110AA	48AA	110AA	110AA	110AA	48AA	48AA	48AA	110AA	110AA	110AA
48cm bust, 48cm band	48A	110A	48A	110A	110A	110A	48A	48A	48A	110A	110A	110A
51cm bust, 48cm band	48B	110B	48B	110B	110B	110B	48B	48B	48B	110B	110B	110B
53cm bust, 48cm band	48C	110C	48C	110C	110C	110C	48C	48C	48C	110C	110C	110C
56cm bust, 48cm band	48D	110D	48D	110D	110D	110D	48D	48D	48D	110D	110D	110D
58cm bust, 48cm band	48DD	110E	48DD	110E	110E	110E	48DD	48DD	48DD	110E	110E	110E
61cm bust, 48cm band	48DDD	110F	48E	110F	110F	110F	48E	48E	48DDD	110F	110F	110F

Convert Sizes Browse Brands Methodology

Last updated: 2025-11-19

FAQ

How are cup letters calculated? Cup is derived from the bust-minus-band difference and mapped to the appropriate regional cup array.
How are sizes converted? We map every input to a canonical body or foot measurement and then apply deterministic regional rounding rules.
Do brand sizes vary? Yes. Consult the brand pages. We apply conservative overrides where variation is common.
What if my result seems off? Use the feedback button near your result to tell us the input and expected output. We review and adjust brand exceptions where appropriate.