Bra Size Calculator
Enter your measurements and we'll find your perfect fit — in UK sizing (the same used across our range).
Your result will be a UK size. Shopping from the US, Canada or Europe? See the conversion chart →
Measure directly under your bust, keeping the tape snug.
Measure around the fullest part of your bust, loosely.
How to measure yourself
Get a soft measuring tape
Use a dressmaker's tape — not a stiff ruler. Measure while wearing a thin, non-padded bra.
Measure your underbust
Wrap the tape directly under your bust, on top of your ribcage. It should be snug but not tight. Note the number in inches.
Measure your bust
Wrap the tape around the fullest part of your bust. Let it sit loosely — you should be able to slide two fingers underneath.
Enter & calculate
Enter both measurements above and tap "Calculate". We'll give you your UK size instantly.