Enter your foot length to estimate US, UK and EU shoe sizes for men and women.
The method behind this calculator
Measure your foot length in centimetres and this converter estimates your shoe size across the US, UK and EU systems.
Sizing varies by brand, so use it as a starting point and try shoes on where you can.
Try it with these numbers
Take the starting scenario, a foot length of 26. That gives a shoe size of 8.7. Underneath, US comes out at 8.7 and UK at 7.7. Change any field and every figure updates as you type.
How to fill it in
- Measure your foot length in centimetres.
- Choose men’s or women’s sizing.
- Read the estimated US, UK and EU sizes.
Formula reference
EU ≈ foot length(cm) × 1.5 + 2
US/UK derived from foot length in inches
Frequently asked questions
How do I measure my foot?
Stand on paper, mark heel to longest toe, and measure the length in centimetres — ideally in the afternoon when feet are largest.
Why do sizes differ by brand?
Each maker uses slightly different lasts and standards, so the same label can fit differently. Treat conversions as approximate.
What’s the difference between men’s and women’s sizes?
The scales are offset — a women’s size is roughly 1.5 numbers larger than the men’s for the same length in the US system.