Bra Cup Size Chart: International Conversion & Measurement Guide

Standard Cup Size Conversion Chart

This international bra cup size chart shows equivalent measurements across different regions:

US/CA UK EU AU/NZ Bust-Band Difference
AA AA AA AA 0-1 inch
A A A A 1-2 inches
B B B B 2-3 inches
C C C C 3-4 inches
D D D D 4-5 inches
DD DD E DD 5-6 inches
DDD/F E F E 6-7 inches

How to Use the Cup Size Chart

  1. Measure your underbust circumference (band size)
  2. Measure your bust circumference at fullest point
  3. Calculate the difference between bust and band measurements
  4. Match the difference to the cup size chart

Important Considerations

  • ➤ Cup sizes vary by brand - always check brand-specific sizing guides
  • ➤ Sister sizes: 34C ≈ 36B ≈ 32D (same cup volume)
  • ➤ Weight fluctuations may require cup size adjustments

Country-Specific Variations

Key differences in international cup sizing:

  • EU sizes use centimeter measurements
  • UK/US diverge after DD cup
  • Japanese sizes often run smaller

Expert Fitting Tips

For accurate cup size measurement:

  • Measure without padding
  • Check both standing and leaning measurements
  • Re-measure every 6-12 months
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