Size guide
| Women's US | Women's UK | Women's Euro |
| 5 | 3 | 35 |
| 5.5 | 3.5 | 36 |
| 6 | 4 | 36/37 |
| 6.5 | 4.5 | 37 |
| 7 | 5 | 38 |
| 7.5 | 5.5 | 38/39 |
| 8 | 6 | 39 |
| 8.5 | 6.5 | 39/40 |
| 9 | 7 | 40 |
| 9.5 | 7.5 | 41 |
| 10 | 8 | 41/42 |
| 10.5 | 8.5 | 42 |
| 11 | 9 | 43 |
| 11.5 | 9.5 | 43/44 |
| 12 | 10 | 44 |
| Men's UK | Men's US | Men's Euro |
| 6 | 6.5 | 39/40 |
| 6.5 | 7 | 40 |
| 7 | 7.5 | 41 |
| 7.5 | 8 | 41/42 |
| 8 | 8.5 | 42 |
| 8.5 | 9 | 43 |
| 9 | 9.5 | 43/44 |
| 9.5 | 10 | 44 |
| 10 | 10.5 | 44/45 |
| 10.5 | 11 | 45 |
| 11 | 11.5 | 46 |
| 11.5 | 12 | 46/47 |
| 12 | 12.5 | 47 |
| 12.5 | 13 | 48 |
| 13 | 13.5 | 48/49 |
| 13.5 | 14 | 49 |
| Age | Kids' UK | Kids' US | Kids' Euro |
| 2 Years | 6 | 6.5 | 23 |
| 2.3 Years | 6.5 | 7 | 23/24 |
| 2.6 Years | 7 | 7.5 | 24 |
| 3 Years | 7.5 | 8 | 25 |
| 3.3 Years | 8 | 8.5 | 25/26 |
| 3.6 Years | 8.5 | 9 | 26 |
| 4 Years | 9 | 9.5 | 26/27 |
| 4.2 Years | 9.5 | 10 | 27 |
| 4.5 Years | 10 | 10.5 | 28 |
| 4.75 Years | 10.5 | 11 | 28/29 |
| 5 Years | 11 | 11.5 | 29 |
| 5.25 Years | 11.5 | 12 | 30 |
| 5.5 Years | 12 | 12.5 | 30/31 |
| 5.75 Years | 12.5 | 13 | 31 |
| 6 Years | 13 | 13.5 | 32 |
| 6.5 Years | 13.5 | 1 | 32.5 |
| 7 Years | 1 | 1.5 | 33 |
| 7.5 Years | 1.5 | 2 | 33/34 |
| 8 Years | 2 | 2.5 | 34 |
| 8.5 Years | 2.5 | 3 | 35 |
| 9 Years | 3 | 3.5 | 35/36 |
| Age | Boys' UK | Girls' UK | Boys' US | Girls' US | Boys'/Girls' Euro |
| 9.5 Years | 3.5 | 4 | 4 | 6 | 36 |
| 10 Years | 4 | 4.5 | 4.5 | 6.5 | 37 |
| 11 Years | 4.5 | 5 | 5 | 7 | 37/38 |
| 12 Years | 5 | 5.5 | 5.5 | 7.5 | 38 |
| Teenage | 5.5 | 6 | 6 | 8 | 39 |
