UK to US Bra Band Size Conversion
| UK Band | US Band |
|---|---|
| 32 | 32 |
| 34 | 34 |
| 36 | 36 |
| 38 | 38 |
| 40 | 40 |
Sizing conventions vary by brand and by cut — this table shows the standard published conversion. Always check the garment's own size chart when one is available. See how these tables are compiled.
Reversed, a UK 36 band is a US 36 band — the two scales match one-to-one on band size, which is why UK-to-US bra conversion questions are almost always really about the cup letter rather than the number.
If you're converting a full bra size rather than the band alone, use this site's bra cup size conversion alongside this page — cup letters shift by one or more letters between the two countries even when the band stays the same.
Frequently asked questions
If the band size is the same, why do bra conversions feel confusing?
Because the cup letter, not the band, is what actually shifts between UK and US sizing — a UK 'DD' and a US 'DD' aren't the same cup volume relative to the band, which this site's cup-size page covers separately.