Shoe Size Conversion Chart
REFMen's Shoe Sizes
| US | UK | EU | CM |
|---|---|---|---|
| 7 | 6 | 40 | 25.0 |
| 7.5 | 6.5 | 40.5 | 25.4 |
| 8 | 7 | 41 | 25.9 |
| 8.5 | 7.5 | 42 | 26.2 |
| 9 | 8 | 42.5 | 26.7 |
| 9.5 | 8.5 | 43 | 27.1 |
| 10 | 9 | 44 | 27.5 |
| 10.5 | 9.5 | 44.5 | 27.9 |
| 11 | 10 | 45 | 28.3 |
| 11.5 | 10.5 | 45.5 | 28.8 |
| 12 | 11 | 46 | 29.2 |
Women's Shoe Sizes
| US | UK | EU | CM |
|---|---|---|---|
| 5 | 3 | 35.5 | 22.0 |
| 5.5 | 3.5 | 36 | 22.5 |
| 6 | 4 | 36.5 | 23.0 |
| 6.5 | 4.5 | 37 | 23.5 |
| 7 | 5 | 37.5 | 24.0 |
| 7.5 | 5.5 | 38 | 24.5 |
| 8 | 6 | 38.5 | 25.0 |
| 8.5 | 6.5 | 39 | 25.5 |
| 9 | 7 | 39.5 | 26.0 |
| 9.5 | 7.5 | 40 | 26.5 |
| 10 | 8 | 40.5 | 27.0 |
How to Measure Shoe Size
Stand on paper and trace your foot. Measure from heel to longest toe in centimeters. Compare to chart above. Measure both feet and use the larger measurement. For best fit, measure in the afternoon when feet are slightly larger.
Understanding the Conversion Systems
Shoe sizing is regional and the math behind each system differs, so conversions are approximate. The US and UK both use a system descended from the English "barleycorn" (1/3 inch per full size), but the two scales are offset: a US men's size runs roughly one full size higher than the equivalent UK size, while US women's sizes run about two sizes higher than UK. The European (Paris point) system increases by 2/3 cm per full size and is unisex, which is why an EU number can land between US half sizes. The CM column reflects foot length (Japanese/Mondopoint style) and is the most reliable basis for comparison because it measures the foot directly rather than the shoe. Men's and women's charts are not interchangeable: a women's US 8.5 is roughly a men's US 7, so check the correct table for the shoe you are buying.