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International Bra Size Conversion Guide

March 17, 20247 min readSize Guide

Table of Contents

Understanding Different Size Systems

Key differences between international sizing systems:

  • Band size measurements vary by country
  • Cup size progression differs
  • Letter systems vary internationally
  • Size ranges differ by region

US Size System

Understanding US bra sizes:

  • Band sizes are measured in inches
  • Common cup sizes: A, B, C, D, DD, DDD, G, H, I, J
  • DD is sometimes labeled as E
  • DDD is sometimes labeled as F

UK Size System

Understanding UK bra sizes:

  • Band sizes are measured in inches
  • Cup sizes: A, B, C, D, DD, E, F, FF, G, GG, H
  • Double letters are used after E (except DD)
  • Sizing tends to be more consistent across brands

EU Size System

Understanding EU bra sizes:

  • Band sizes are measured in centimeters
  • Cup sizes: A, B, C, D, E, F, G, H, I, J
  • No double letters are used
  • 5 cm steps between band sizes

Other International Systems

Other sizing systems to know:

  • French sizing uses numbers plus letters
  • Italian sizing uses numbers only
  • Australian sizing is similar to UK
  • Japanese sizing uses centimeters

Conversion Tips

Expert Advice

  • Always check brand-specific size charts
  • Use our calculator for accurate conversion
  • Consider trying sister sizes
  • Remember that fit varies by brand
  • Keep track of your size in different systems

Brand-Specific Variations

Important brand considerations:

  • European brands may run smaller
  • US brands often vary in cup progression
  • Luxury brands may use unique sizing
  • Some brands offer conversion charts

Professional Solutions

How to ensure accurate conversion:

  • Use our size calculator
  • Measure regularly
  • Keep notes on different brands
  • Consider professional fitting