How to Measure and Calculate Bra Size
Simple workflow instructions:
STEP 01
Measure Underbust
Wrap a soft measuring tape snugly under your bust around your ribcage.
STEP 02
Measure Bust
Wrap tape loosely around the fullest part of your bust while standing straight.
STEP 03
Calculate Cup
The difference in inches between full bust and band size yields cup letter (A, B, C, D, DD, E...).
STEP 04
Read Sizes
Read generated US, UK, and European bra sizing standards.
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Frequently Asked Questions
?How is bra band size determined from underbust?
Standard modern bra fitting adds 4 inches if your snug underbust is an even number (or 5 inches if odd) to find your band size (e.g. 30" underbust = 34 band).