International Bra Band & Cup Size Measurement Calculator
Calculate your true comfortable bra size and cup letter (A, B, C, D, DD/E, F) in US, UK, and European (EU) sizing standards using snug underbust and loose bust tape measurements.
Calculator Inputs
Live Real-TimeBust-to-Underbust Difference (cm)
Recommended EU / Standard Band Size
75 EU
US / UK Band Size (Inches)
34 "
Detailed Calculation Breakdown
Calculation Methodology
Cup Difference = Bust Measurement - Snug Underbust. (1 inch / 2.5cm = A Cup, 2 inches / 5cm = B Cup, 3 inches / 7.5cm = C Cup, 4 inches / 10cm = D Cup, 5 inches / 12.5cm = DD/E Cup).
Important Legal & Educational Disclaimer
80% of women wear an incorrect bra size. Take measurements wearing an unpadded bra for maximum precision.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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