Bra Size Calculator & Converter
Find your perfect fit and convert between international bra sizing systems
Size Calculator
Size Converter
Measure Your Size
Inches
Centimeters
in
Measure firmly around your ribcage, directly under your breasts. The tape should be snug but not tight.
in
Measure loosely around the fullest part of your bust while standing straight. Wear a non-padded bra for best results.
Your bra size will appear here
International Sizes
United States
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United Kingdom
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European Union
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France/Belgium
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Australia/NZ
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Spain
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Measurement Guide
Replace the image below with your own measurement diagram by updating the image URL
For accurate measurements, stand straight with arms at your sides and ensure the tape is parallel to the floor.
Convert Bra Sizes
Converted sizes will appear here
International Size Chart
Bra sizing varies by region. Use this chart as a guide, but always check brand-specific sizing.
| US | UK | EU | FR/BE | AUS/NZ | ES |
|---|---|---|---|---|---|
| 32A | 32A | 70A | 85A | 10A | 80A |
| 34B | 34B | 75B | 90B | 12B | 85B |
| 36C | 36C | 80C | 95C | 14C | 90C |
| 38D | 38D | 85D | 100D | 16D | 95D |
| 40DD | 40DD | 90E | 105E | 18DD | 100E |
| 42DDD | 42E | 95F | 110F | 20E | 105F |
Bra Sizing Tips
- Bras should feel comfortable all day – not tight or restrictive
- The band should be parallel to the floor and provide most of the support
- Cups should fully contain breast tissue without spillage or gaping
- Center gore should lie flat against your sternum
- Measure every 6-12 months as body changes affect bra fit