UK bra sizes
UK bra sizes pair a band label in even numbers from 28 to 60 with a cup letter chosen by the difference between bust and band.
UK bands, 28 to 60
Each rung is one band label. A band label is a tag number, not a body measurement.
US/UK 28
UK 28
US/UK 30
UK 30
US/UK 32
UK 32
US/UK 34
UK 34
US/UK 36
UK 36
US/UK 38
UK 38
US/UK 40
UK 40
US/UK 42
UK 42
US/UK 44
UK 44
US/UK 46
UK 46
US/UK 48
UK 48
US/UK 50
UK 50
US/UK 52
UK 52
US/UK 54
UK 54
US/UK 56
UK 56
US/UK 58
UK 58
US/UK 60
UK 60
UK band labels beside the other systems
| US / UK | EU | FR/BE | AU/NZ | JP |
|---|---|---|---|---|
| 28 | 60 | 75 | 6 | 60 |
| 30 | 65 | 80 | 8 | 65 |
| 32 | 70 | 85 | 10 | 70 |
| 34 | 75 | 90 | 12 | 75 |
| 36 | 80 | 95 | 14 | 80 |
| 38 | 85 | 100 | 16 | 85 |
| 40 | 90 | 105 | 18 | 90 |
| 42 | 95 | 110 | 20 | 95 |
| 44 | 100 | 115 | 22 | 100 |
| 46 | 105 | 120 | 24 | 105 |
| 48 | 110 | 125 | 26 | 110 |
| 50 | 115 | 130 | 28 | 115 |
| 52 | 120 | 135 | 30 | 120 |
| 54 | 125 | 140 | 32 | 125 |
| 56 | 130 | 145 | 34 | 130 |
| 58 | 135 | 150 | 36 | 135 |
| 60 | 140 | 155 | 38 | 140 |
UK cup letters
Cup letters by the difference between bust and band, with the notes where sources disagree.
| Difference (in) | Difference (cm) | UK |
|---|---|---|
| 0 | 0 | AA |
| 1 | 2.5 | A |
| 2 | 5.1 | B |
| 3 | 7.6 | C |
| 4 | 10.2 | D |
| 5 | 12.7 | DD |
| 6 | 15.2 | E |
| 7 | 17.8 | F |
| 8 | 20.3 | FF |
| 9 | 22.9 | G |
| 10 | 25.4 | GG |
| 11 | 27.9 | H |
| 12 | 30.5 | HH |
| 13 | 33 | J |
| 14 | 35.6 | JJ |
| 15 | 38.1 | K |
UK charts write double letters such as FF and GG, and one UK retailer leaves out some of them.
10 UK cup letters, one page each
The letters this system writes, each with its own page.
UK band labels move in even-numbered steps across the listed range, from 28 to 60. Under the underbust method, round the underbust to the nearest even number of inches for the tag band; an exact odd whole number goes up. US and UK labels use the same band numbers across this range. The band is the tag label, while underbust is the measurement used to determine it.
UK cup letters are listed for differences from less than 1 in through 15 in. The sequence runs AA, A, B, C, D, DD, E, F, FF, G, GG, H, HH, J, JJ, K. Double letters appear between single letters at DD, FF, GG, HH and JJ. The sequence skips I, moving directly from HH to J.
Published charts may differ in how they write cup labels across systems: the example pairs US 34DD/E with UK 34DD. Other UK examples are 32A, 34B and 36C. The band numbers in the listed US and UK examples match, while that cup label is written differently. The listed UK cup sequence covers the differences shown here; it does not give a letter for differences outside its stated range.
Questions
What is a US 34 band in UK sizing?
A US 34 band is UK 34.
Which cup letter is a difference of 6 in in UK sizing?
A bust 6 in above the band is UK E.
Do UK sizes vary between brands?
UK charts write double letters such as FF and GG, and one UK retailer leaves out some of them. Treat any chart as a starting point and compare it with the size guide of the brand you are buying.