Foot length is the reliable measure. If you fall between two sizes, take the larger.
| EU | US | UK | Foot Length (cm) |
|---|---|---|---|
| 38 | US 5 | UK 4 | 23.8 cm |
| 39 | US 6 | UK 5 | 24.7 cm |
| 40 | US 7 | UK 6 | 25.5 cm |
| 41 | US 8 | UK 7 | 26.4 cm |
| 42 | US 9 | UK 8 | 27.2 cm |
| 43 | US 10 | UK 9 | 28.1 cm |
| 44 | US 11 | UK 10 | 29.0 cm |
| 45 | US 12 | UK 11 | 29.6 cm |
| 46 | US 13 | UK 12 | 30.4 cm |
| 47 | US 14 | UK 13 | 31.2 cm |
How to measure Stand on a sheet of paper with your heel against a wall. Mark the paper at the tip of your longest toe and measure from the wall to the mark. Measure both feet and use the larger. Take it in the afternoon, standing, with your weight on the foot.