Nearly 80% of women wear the wrong bra size. Find your perfect fit in just two easy steps using our bra size calculator.

Step 1 — Underbust
Wrap tape snugly around your ribcage, right under your bust
Keep tape level and snug
Step 2 — Bust
Measure around the fullest part of your bust, tape snug not tight
Breathe normally while measuring

Please enter valid measurements. Bust must be larger than underbust.

Your recommended size
Sister sizes (same cup volume, different band)
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Tips for accurate measurement
  • Wear a non-padded or lightly padded bra when measuring
  • Keep the tape snug but not tight — breathe normally
  • Measure at the fullest part of your bust
  • Your bust size can change slightly during your menstrual cycle
  • Measure at the same time of day for best consistency
Cup size reference chart
Bust − Band difference (inches) Cup size
< 1AA
1A
2B
3C
4D
5DD
6E
7F
8FF
9+G