Bra Size Calculator

Find your perfect fit in just a few measurements

Enter Your Measurements

Measure snugly around your ribcage, just under your bust
Measure loosely around the fullest part of your bust

Your Perfect Bra Size Is:

Understanding Bra Sizes

How to Measure Correctly
  1. Use a soft measuring tape
  2. Measure underbust snugly but not tight
  3. Measure bust at the fullest part
  4. Stand straight with arms at your sides
  5. Wear a non-padded bra for accuracy
Common Fit Problems
  • Band rides up - try a smaller band
  • Cups gap - try a smaller cup
  • Spillage - try a larger cup
  • Straps dig in - adjust or try different style
  • Wire hurts - check size and style

International Bra Size Conversion

US UK EU FR/BE/ES AU/NZ
32A 32A 70A 85A 10A
34B 34B 75B 90B 12B
36C 36C 80C 95C 14C
38D 38D 85D 100D 16D
40DD 40DD 90E 105E 18DD

Why Proper Bra Size Matters

Wearing the correct bra size is essential for comfort, support, and overall breast health. Studies show that up to 80% of women wear the wrong bra size, which can lead to back pain, poor posture, and even restricted breathing. Our bra size calculator uses advanced algorithms to account for different sizing systems and body types, providing you with the most accurate recommendation.

Bra Fit Guide

A well-fitting bra should:

  • Have a band that sits parallel to the ground and doesn't ride up
  • Have cups that fully contain your breast tissue without gaping or spillage
  • Have straps that stay in place without digging into your shoulders
  • Have an underwire (if present) that follows your breast root without poking
  • Feel comfortable when fastened on the loosest hook (allows for tightening as the bra stretches)

When to Remeasure

Your bra size can change due to various factors. We recommend remeasuring:

  • Every 6-12 months
  • After significant weight loss or gain
  • After pregnancy or breastfeeding
  • After any chest or breast surgery
  • If you notice fit issues with your current bras