| US Shoe Size | UK Shoe Size | EU Shoe Size | Inches | Centimeters | Best Fit |
| 4 | 3 | 19 | 4.75 | 12 | C4 |
| 4.5 | 3.5 | 19.5 | 4.8 | 12.2 | C5 |
| 5 | 4 | 20 | 4.9 | 12.4 | C5 |
| 5.5 | 4.5 | 21 | 5 | 12.7 | C6 |
| 6 | 5 | 22 | 5.3 | 13.4 | C6 |
| 6.5 | 5.5 | 22.5 | 5.3 | 13.5 | C7 |
| 7 | 6 | 23 | 5.5 | 13.9 | C7 |
| 7.5 | 6.5 | 23.5 | 5.6 | 14.3 | C8 |
| 8 | 7 | 24 | 5.8 | 14.7 | C8 |
| 8.5 | 7.5 | 24.5 | 5.9 | 15.2 | C9 |
| 9 | 8 | 25 | 6.1 | 15.5 | C9 |
| 9.5 | 8.5 | 26 | 6.2 | 15.9 | C10 |
| 10 | 9 | 27 | 6.5 | 16.5 | C10 |
| 10.5 | 9.5 | 27.5 | 6.6 | 16.8 | C11 |
| 11 | 10 | 28 | 6.8 | 17.2 | C11 |
| 11.5 | 10.5 | 29 | 7 | 17.8 | C12 |
| 12 | 11 | 30 | 7.1 | 18 | C12 |
| 12.5 | 11.5 | 31 | 7.3 | 18.6 | C13 |
| 13 | 12 | 31.5 | 7.7 | 19.5 | C13 |
| 13.5 | 12.5 | 32 | 7.8 | 19.8 | J1 |
| 1 | 13 | 32.5 | 7.9 | 20 | J1 |
| 1.5 | 14 | 33 | 7.9 | 20.3 | J2 |
| 2 | 1 | 33.5 | 8.2 | 20.8 | J2 |
| 2.5 | 1.5 | 34 | 8.3 | 21.3 | J3 |
| 3 | 2 | 35 | 8.6 | 21.8 | J3 |
| 3.5 | 2.5 | 35.5 | 8.7 | 22.3 | J4 |
| 4 | 3 | 36 | 9 | 22.8 | J4 |
| 4.5 | 3.5 | 36.5 | 9.1 | 23.2 | J5 |
| 5 | 4 | 37 | 9.3 | 23.6 | J5 |
| 5.5 | 4.5 | 37.5 | 9.4 | 23.9 | J6 |
| 6 | 5 | 38 | 9.5 | 24.1 | J6 |
