Bra Size Calculator

Our bra size calculator helps you find your perfect bra size using two simple measurements. Get accurate band and cup size calculations based on your underbust and bust measurements.

How to Measure

1. Underbust Measurement

   • Measure directly under your breasts
   • Keep the measuring tape parallel to the ground
   • Take a snug measurement
   • Breathe normally while measuring

2. Bust Measurement

   • Measure around the fullest part of your breasts
   • Keep the measuring tape parallel to the ground
   • Don’t pull the tape too tight
   • Wear an unpadded bra for best results

Understanding Your Results

Band Size

The band size is the number in your bra size (e.g., the “34” in 34B). This is based on your underbust measurement and is typically rounded to the nearest even number.

Cup Size

The cup size (letters A, B, C, etc.) is determined by the difference between your bust and band measurements:

• Less than 1” = AA
• 1” = A
• 2” = B
• 3” = C
• 4” = D
• 5” = DD
• 6” = DDD/F
• 7” = G And so on…

Tips for a Perfect Fit

1. Band Test: The band should be snug but not tight. You should be able to fit two fingers under the band.

2. Cup Test: Your breasts should fill the cups completely without spillage or gaping.

3. Center Gore: The center piece between the cups should lay flat against your sternum.

4. Straps: Should provide support without digging into your shoulders.

Common Fitting Issues

• Band rides up: Try a smaller band size
• Cups wrinkle: Try a smaller cup size
• Spillage: Try a larger cup size
• Straps falling: Try adjusting the straps or a smaller band size

When to Remeasure

• Weight changes of 5-10 pounds
• Pregnancy or breastfeeding
• Starting or stopping hormonal medications
• Every 6-12 months for regular wear

Remember that this calculator provides a starting point. Factors like breast shape, body type, and personal preference can affect your ideal size. Try on bras around your calculated size to find your perfect fit.