| US Women | Europe | UK | Length (cm) |
|---|---|---|---|
| 3 | 33 | 1 | 20 |
| 3½ | 33½ | 1½ | 20.5 |
| 4 | 34 | 2 | 21 |
| 4½ | 34½ | 2½ | 21.5 |
| 5 | 35 | 3 | 22 |
| 5½ | 36 | 3½ | 22.5 |
| 6 | 36½ | 4 | 23 |
| 6½ | 37 | 4½ | 23.5 |
| 7 | 37½ | 5 | 24 |
| 7½ | 38 | 5½ | 24.5 |
| 8 | 39 | 6 | 25 |
| 8½ | 40 | 6½ | 25.5 |
| 9 | 40½ | 7 | 26 |
| 9½ | 41 | 7½ | 26.5 |
| 10 | 41½ | 8 | 27 |
| 10½ | 42½ | 8½ | 27.5 |
| 11 | 43 | 9 | 28 |
| 11½ | 43½ | 9½ | 28.5 |
| 12 | 44 | 10 | 29 |
| 12½ | 45 | 10½ | 29.5 |
| 13 | 45½ | 11 | 30 |
| 13½ | 46 | 11½ | 30.5 |
| 14 | 46½ | 12 | 31 |
| 15 | 48 | 13 | 32 |