Bra Size Calculator
Find your perfect bra size based on your measurements. Get sizes in US, UK, and EU systems.
Bra Size Calculator
Find your bra size based on band and bust measurements
How to Use This Calculator
- 1
Select your unit
Choose inches or centimeters for measurements.
- 2
Measure your band
Measure around your ribcage, just under your bust. Keep the tape snug but not tight.
- 3
Measure your bust
Measure around the fullest part of your bust, keeping the tape level.
- 4
View your size
See your bra size in US, UK, and EU sizing systems.
Frequently Asked Questions
How do I measure correctly?
Wear an unpadded bra or no bra. Keep the measuring tape level and parallel to the floor. The tape should be snug but not tight. Measure in front of a mirror to ensure accuracy.
What if I'm between sizes?
If your band measurement is odd, round to the nearest even number. If you're between cup sizes, try both and see which fits better. Sister sizes (e.g., 34C = 32D = 36B) can also help.
Why do bra sizes vary by brand?
Sizing isn't standardized across brands. Use this calculator as a starting point, then try on bras to find your best fit. The band should be snug and the cups should fully contain breast tissue.