Bra Size Chart
Complete bra size chart for US and UK sizing with EU and AU conversions. The definitive bra size chart UK and US reference. Find your size in any system. This bra size chart US and international reference has everything you need.
US & UK Cup Size Conversion
This bra size chart makes conversion simple. US, UK, and EU cup letters are identical up to D. After that, the systems diverge. The table below shows exactly how each letter maps across regions. The highlighted row marks where the US and UK first differ.
| Difference | US Cup | UK Cup | EU Cup | AU Cup |
|---|---|---|---|---|
| <1" | AA | AA | AA | AA |
| 1" | A | A | A | A |
| 2" | B | B | B | B |
| 3" | C | C | C | C |
| 4" | D | D | D | D |
| 5" | DD | DD | E | DD |
| 6" | DDD / F | E | F | E |
| 7" | G | F | G | F |
| 8" | H | FF | H | FF |
| 9" | I | G | I | G |
| 10" | J | GG | J | GG |
| 11" | K | H | K | H |
| 12" | L | HH | L | HH |
| 13" | M | J | M | J |
| 14" | N | JJ | N | JJ |
Band Size Conversion
Our bra size chart covers band conversions too. Band numbers are consistent between US and UK sizing. EU sizing uses centimeters. AU uses even dress-size numbers. French sizing adds 15 to the EU number.
| US / UK | EU | AU | FR / BE / ES | IT |
|---|---|---|---|---|
| 28 | 60 | 6 | 75 | 1 |
| 30 | 65 | 8 | 80 | 2 |
| 32 | 70 | 10 | 85 | 3 |
| 34 | 75 | 12 | 90 | 4 |
| 36 | 80 | 14 | 95 | 5 |
| 38 | 85 | 16 | 100 | 6 |
| 40 | 90 | 18 | 105 | 7 |
| 42 | 95 | 20 | 110 | 8 |
| 44 | 100 | 22 | 115 | 9 |
| 46 | 105 | 24 | 120 | 10 |
How to Use These Charts
If you know your US size, find it in the US column and read across to see the equivalent in any other system. For example, a US 34DDD is a UK 34E, an EU 75F, and an AU 12E. This bra size chart covers all major international systems in one place.
If you're not sure of your starting size, our bra size calculator will determine it from your measurements. To convert a single size quickly, use the interactive converter. For more detail on what each cup letter actually represents, see the breast size chart or cup size comparison.
Keep in mind that these standard sizes vary by brand — see our brand sizing guide for how specific labels differ. Not sure which international size is yours? Our bra size converter lets you translate between any system instantly.
Save this bra size chart for quick reference when shopping online or in store. Find your size with our free bra size calculator.