Bra Size Converter
Convert bra band and cup sizes between US, UK, EU, and AU standards.
Bra Size Calculator
Measurement Guide
Band
Measure around ribs
Bust
Measure around fullest part
Did You Know?
80% of women wear the wrong bra size. A well-fitting bra should be level all the way around and should not move when you raise your arms.
Conversion Tip
EU and AU bands use the measurement in centimeters (e.g., 75cm), while US and UK sizes use inches (e.g., 34").
Bra Size & Cup Converter
Convert bra band and cup sizes between United States, United Kingdom, Europe, and Australia.
Enter Band
Select or input your band size (e.g., 34, 75).
Select Cup
Choose your cup letter (e.g., C, DD).
Get Equivalents
See matching international sizes instantly.
Frequently Asked Questions
After a D cup, UK sizes use double letters (DD, E, EE) differently than the US standard.
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