Bra Size Calculator
This rough US sizing estimate rounds the underbust to an even band and maps bust difference to a cup.
This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.
How it works
This rough US sizing estimate rounds the underbust to an even band and maps bust difference to a cup.
Worked example
Fit can vary greatly between brands and styles.
Keep in mind
Use this only as a starting size; professional fitting and regional systems differ.