UK to US Bra Size Conversion Chart
Convert UK bra sizes to US. Band sizes are the same — cup sizes differ after D.
UK to US Cup Size Conversion
| UK Cup | US Cup | EU Cup |
|---|---|---|
| A | A | A |
| B | B | B |
| C | C | C |
| D | D | D |
| DD | DD | E |
| E | DDD | F |
| F | G | G |
| FF | H | H |
| G | I | I |
Band Size Conversion
UK and US band sizes are identical. EU uses a centimeter-based system.
| UK Band | US Band | EU Band | AU Band |
|---|---|---|---|
| 28 | 28 | 60 | 6 |
| 30 | 30 | 65 | 8 |
| 32 | 32 | 70 | 10 |
| 34 | 34 | 75 | 12 |
| 36 | 36 | 80 | 14 |
| 38 | 38 | 85 | 16 |
| 40 | 40 | 90 | 18 |
| 42 | 42 | 95 | 20 |
| 44 | 44 | 100 | 22 |
How UK and US Bra Sizes Differ
UK and US bra sizing share the same band numbers (30, 32, 34, etc.), so the band size converts directly. The key difference is in cup sizes, which diverge after D cup.
The UK uses a double-letter progression: D, DD, E, F, FF, G, GG, H. The US typically uses: D, DD, DDD (or F), G, H, I. This means a UK E cup equals a US DDD, and a UK F cup equals a US G.
UK sizing is generally considered more consistent across brands, especially in larger cup sizes. If you know your UK size, converting to US is straightforward using the chart above.
For brand-specific conversions, use our bra size converter or find your size from measurements with our bra size calculator.