Bra Size Calculator
Find your perfect bra size with professional measurement methods and international sizing
Take Your Measurements
For best results, measure yourself while wearing a well-fitting bra or no bra
Measure around your ribcage, just under your bust
Measure around the fullest part of your bust
Your Size (US)
34C
Modern Method
Cup difference: 3.0"
International Sizes
US:34C
UK:34C
EU:75C
Sister Sizes
32D
Smaller band, larger cup
36B
Larger band, smaller cup
Measurement Tips: Measure yourself in the morning when you're less bloated. Wear a non-padded, well-fitting bra or no bra. Keep the measuring tape parallel to the floor and snug but not tight.