Dress Size Calculator

Dress size varies significantly between countries. A UK size 12 is a US size 8 and a European size 40

The calculator uses the standard published formula for dress size. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: UK sizes are even numbers (6–26). UK size = bust measurement in inches − 28. Each step in the calculation is shown so you can verify the result manually.