| US Size | UK Size | EU Size |
| 5 | 3 | 36-36.5 |
| 5.5 | 3.5 | 36-36.5 |
| 6 | 4 | 37-37.5 |
| 6.5 | 4.5 | 37-37.5 |
| 7 | 5 | 38-38.5 |
| 7.5 | 5.5 | 38-38.5 |
| 8 | 6 | 39-39.5 |
| 8.5 | 6.5 | 39-39.5 |
| 9 | 7 | 40-40.5 |
| 9.5 | 7.5 | 40-40.5 |
| 10 | 8 | 41-41.5 |
| 10.5 | 8.5 | 41-41.5 |
| 11 | 9 | 42 |
Where Size Matters
| US Size | UK Size | EU Size |
| 5 | 3 | 36-36.5 |
| 5.5 | 3.5 | 36-36.5 |
| 6 | 4 | 37-37.5 |
| 6.5 | 4.5 | 37-37.5 |
| 7 | 5 | 38-38.5 |
| 7.5 | 5.5 | 38-38.5 |
| 8 | 6 | 39-39.5 |
| 8.5 | 6.5 | 39-39.5 |
| 9 | 7 | 40-40.5 |
| 9.5 | 7.5 | 40-40.5 |
| 10 | 8 | 41-41.5 |
| 10.5 | 8.5 | 41-41.5 |
| 11 | 9 | 42 |