Bras Fitting Guide

From the comfort of your own home, our professional bra-fitting guide will help you find the ideal fit.

Anyone who has ever worn an incorrect bra size knows how easily an otherwise perfect outfit—or worse, an entire day—can be ruined. (The breast pain and backaches that can accompany it aren't to be taken lightly.) Finding and investing in a collection of undergarments that are the right cut, fit, and size is the solution, but it isn't simple.

Step 1. Calculate the size of your band

Measure directly under your bust, where a bra will go, if you're not wearing a bra. It's essential that the tape is level and snug. Round to the nearest whole number, add four inches if the number is even, and five inches if the number is odd. The result of this equation is the size of your band.

Step 2. Measure the circumference of your bust

Wrap the measuring tape across the fullest portion of your chest loosely (at nipple level). This calculation should be rounded to the nearest whole number.

Step 3. Calculate your cup size

Subtract the following: bust size – band size. Your cup size will be determined by the difference.

If the difference Is Your Cup Size is
½”-1” (2.6 cm) A
2” (5.1 cm) B
3” (7.6 cm) C
4” (10.2 cm) D
5” (12.7 cm) E OR DD
6” (15.2 cm) F OR DDD
7” (17.8 cm) G
8” (20.3 cm) H
9” (22.9 cm) I
10” (25.4 cm) J