Band measurement
- Stand straight and exhale.
- Wrap the tape level under the bust.
- Round to the nearest even number.
Bust measurement
- Wear an unpadded bra.
- Wrap the tape around the fullest part.
- Keep it level and loose.
Cup calculation
| Difference (in) | US | UK |
|---|---|---|
| 0 | AA | AA |
| 1 | A | A |
| 2 | B | B |
| 3 | C | C |
| 4 | D | D |
| 5 | DD-E | DD |
| 6 | DDD-F | E |
| 7 | G | F |
| 8 | H | FF |
| 9 | I | G |
| 10 | J | GG |
| 11 | K | H |
Sister sizes
| Size | Down | Up |
|---|---|---|
| 32B | 30C | 34A |
| 34C | 32D | 36B |
Signs of a wrong fit
- Band rides up.
- Cups gape or spill.
- Gore does not lie flat.
- Straps dig in.
Frequently asked questions
How often should I measure?
Every 6-12 months.
Can I measure without a bra?
Yes, but wear an unpadded bra for the bust.
What if I am between sizes?
Try the sister size.