| New Balance | |||
| US | UK | EUR | Foot length (CM) |
| 6W | 4 | 36.5 | 23 |
| 7W | 5 | 37.5 | 24 |
| 7.5W | 5.5 | 38 | 24.5 |
| 8W | 6 | 39 | 25 |
| 8.5W | 6.5 | 40 | 25.5 |
| 9W | 7 | 40.5 | 26 |
| 9.5W | 7.5 | 41 | 26.5 |
| 10W | 8 | 41.5 | 27 |
| 11W | 8.5 | 42.5 | 27.5 |
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| New Balance | |||
| US | UK | EUR | Foot length (CM) |
| 6W | 4 | 36.5 | 23 |
| 7W | 5 | 37.5 | 24 |
| 7.5W | 5.5 | 38 | 24.5 |
| 8W | 6 | 39 | 25 |
| 8.5W | 6.5 | 40 | 25.5 |
| 9W | 7 | 40.5 | 26 |
| 9.5W | 7.5 | 41 | 26.5 |
| 10W | 8 | 41.5 | 27 |
| 11W | 8.5 | 42.5 | 27.5 |