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Find your perfect fit — with size calculator and size chart.
Wrap a measuring tape snugly around your ribcage, just below your bust. Keep it level and not too tight.
Wrap the tape around the fullest part of your bust, keeping it parallel to the floor. Do not pull too tight.
Subtract your band measurement from your bust measurement. The difference gives your cup size.
| Under-Bust (Inches) | Under-Bust (cm) | Band Size |
|---|---|---|
| 23–24" | 58–61 cm | 28 |
| 25–26" | 63–66 cm | 30 |
| 27–28" | 68–71 cm | 32 |
| 29–30" | 73–76 cm | 34 |
| 31–32" | 78–81 cm | 36 |
| 33–34" | 83–86 cm | 38 |
| 35–36" | 88–91 cm | 40 |
| 37–38" | 93–96 cm | 42 |
| 39–40" | 98–101 cm | 44 |
| 41–42" | 103–106 cm | 46 |
| 43–44" | 108–111 cm | 48 |
| 45–46" | 113–116 cm | 50 |
| Difference (Bust − Band) | Cup Size |
|---|---|
| 0 inch | AA |
| 1 inch | A |
| 2 inch | B |
| 3 inch | C |
| 4 inch | D |
| 5 inch | DD |
| 6 inch | F |
| 7 inch | G |
| 8 inch | H |
| 9 inch | I |
| 10 inch | J |
| 11 inch | K |
👉 Scroll sideways to see full table
| Band | AA | A | B | C | D | DD | F | G | H |
|---|---|---|---|---|---|---|---|---|---|
| 28 | 28AA | 28A | 28B | 28C | 28D | 28DD | 28F | 28G | 28H |
| 30 | 30AA | 30A | 30B | 30C | 30D | 30DD | 30F | 30G | 30H |
| 32 | 32AA | 32A | 32B | 32C | 32D | 32DD | 32F | 32G | 32H |
| 34 | 34AA | 34A | 34B | 34C | 34D | 34DD | 34F | 34G | 34H |
| 36 | 36AA | 36A | 36B | 36C | 36D | 36DD | 36F | 36G | 36H |
| 38 | 38AA | 38A | 38B | 38C | 38D | 38DD | 38F | 38G | 38H |
| 40 | 40AA | 40A | 40B | 40C | 40D | 40DD | 40F | 40G | 40H |
| 42 | 42AA | 42A | 42B | 42C | 42D | 42DD | 42F | 42G | 42H |
| 44 | 44AA | 44A | 44B | 44C | 44D | 44DD | 44F | 44G | 44H |
| 46 | 46AA | 46A | 46B | 46C | 46D | 46DD | 46F | 46G | 46H |
| 48 | 48AA | 48A | 48B | 48C | 48D | 48DD | 48F | 48G | 48H |
| 50 | 50AA | 50A | 50B | 50C | 50D | 50DD | 50F | 50G | 50H |
Same cup volume, different band.
Example: 34C = 32B = 36D