| US / CA | EU | UK | Foot Length | Age Group |
|---|---|---|---|---|
| 5 | - | - | 5.5 | 12-18 months |
| 6 | - | - | 5.8 | 2 years |
| 7 | - | - | 6 | 2 years |
| 8 | - | - | 6.3 | 3 years |
| 9 | - | - | 6.5 | 3 years |
| 10 | - | - | 7 | 4 years |
| 11 | - | - | 7.3 | 4 years |
| 12 | - | - | 7.5 | 5 years |
| 13 | - | - | 7.8 | 6 years |
| 1 | - | - | 8 | 6 years |
| 2 | - | - | 8.5 | 7 years |
| 3 | - | - | 9 | 7-9 years |
| 4 | - | - | 10 | 8-10 years |
| 5 | - | - | 10 | 9-11 years |
| 6 | - | - | 9-11 years |
| US / CA | EU | UK | Foot Length | Age Group |
|---|---|---|---|---|
| 5 | - | - | 14 | 12-18 months |
| 6 | - | - | 14.6 | 2 years |
| 7 | - | - | 15.2 | 2 years |
| 8 | - | - | 15.9 | 3 years |
| 9 | - | - | 16.5 | 3 years |
| 10 | - | - | 17.8 | 4 years |
| 11 | - | - | 18.4 | 4 years |
| 12 | - | - | 19 | 5 years |
| 13 | - | - | 19.7 | 6 years |
| 1 | - | - | 20.3 | 6 years |
| 2 | - | - | 21.6 | 7 years |
| 3 | - | - | 22.9 | 7-9 years |
| 4 | - | - | 25.4 | 8-10 years |
| 5 | - | - | 25.4 | 9-11 years |
| 6 | - | - | 9-11 years |