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Bra Size Finder
Bra Size Finder
Find your perfect fit — band, cup & international conversions
🇺🇸 US
🇬🇧 UK
🇪🇺 EU
🇫🇷 FR/BE
🇦🇺 AU/NZ
🇯🇵 JP
Measurement Unit
How to Measure
1
Underbust — Wrap tape measure snugly around your ribcage, directly under your breasts. Keep tape parallel to the floor. Breathe normally.
2
Bust/Overbust — Measure around the fullest part of your chest (at nipple level). Keep the tape slightly loose and parallel to the floor.
3
Wear an unpadded bra or no bra for the most accurate measurements. Measure twice!
Enter Your Measurements
① Underbust (Band)
Snugly under your breasts
in
222834404650
② Overbust (Bust)
At the fullest part of your chest
in
243240485558
🌍 International Sizes
Sister Sizes
Sister sizes have the same cup volume but different band sizes. If your bra doesn't fit perfectly, try a sister size.
Cup Size Reference Chart
| Diff (in) | US/UK Cup | EU Cup | FR/BE Cup | JP Cup |
|---|
Good fit signs: Straps stay up without digging in. Band is horizontal all the way around.
Signs you need a bigger cup: Underwire sits on breast tissue, cups overflow.
Pro tip: 80% of women wear the wrong bra size. A professional fitting takes 5 minutes.