Bra Size Guide

CM Inch

cm S M L XL
Bust 86-91 91-96 96-101 101-106
Under Bust 73-77 78-82 83-87 88-93
International Bra Size 75B–D 80B–D 85B–D 90B–D
UK Bra Size 34B–D 36B–D 38B–D 40B–D

Cup Size Difference B C D
Bust − Underbust 11–12.5 12.5–15 15–16

How to measure?

1) Bust (upper bust) Lean your upper body forward about 45°. Wrap a soft tape horizontally around your torso, passing over the fullest point of the bust (nipple line). Keep the tape snug but not tight, level to the floor. Breathe naturally and record the number.

2) Underbust Stand upright. Place the tape directly under the bust at the breast root (inframammary fold) and wrap it horizontally around the ribcage. Pull the tape snug and record the number.

3) Choose your size Band size (S/M/L/XL) is based primarily on the underbust measurement—use the size table. Cup size = Bust − Underbust.
B cup: 11–12.5 cm (4.5–5 in)
C cup: 12.5–15 cm (5–6 in)
D cup: 15–16 cm (6–6.5 in)

Due to different styles and body shapes, fit can vary slightly. If between sizes, choose the band by underbust first; then adjust cup according to the difference above.