| US / CA | EU | UK | Foot Length | Age Group |
|---|---|---|---|---|
| Infant 2 | 17 | 1 | 3.8 | 0-12 months |
| Toddler 4 | 20 | 3 | 4.9 | 12-24 months |
| Toddler 5 | 21 | 4 | 5.3 | 12-24 months |
| Toddler 6 | 22 | 5 | 5.6 | 12-24 months |
| Toddler 7 | 23 | 6 | 6 | 2-4 years |
| Toddler 8 | 24 | 7 | 6.3 | 2-4 years |
| Toddler 9 | 25 | 8 | 6.6 | 2-4 years |
| Toddler 10 | 26 | 9 | 6.9 | 2-4 years |
| Toddler 11 | 27 | 10 | 7.3 | 2-4 years |
| Little Kid 12 | 29 | 11 | 7.6 | 4-6 years |
| Little Kid 13 | 30 | 12 | 7.9 | 4-6 years |
| Little Kid 1 | 31 | 13 | 8.2 | 4-6 years |
| Little Kid 2 | 33 | 1 | 8.5 | 4-6 years |
| Little Kid 3 | 35 | 2 | 8.8 | 6-9 years |
| Big Kid 4 | 37 | 3 | 9.2 | 6-9 years |
| Big Kid 5 | 38 | 4 | 9.5 | 10-12 years |
| Big Kid 6 | 39 | 5 | 9.8 | 10-12 years |
| Big Kid 7 | 40 | 6 | 10.2 | 10-12 years |
| US / CA | EU | UK | Foot Length | Age Group |
|---|---|---|---|---|
| Infant 2 | 17 | 1 | 9.7 | 0-12 months |
| Toddler 4 | 20 | 3 | 12.4 | 12-24 months |
| Toddler 5 | 21 | 4 | 13.5 | 12-24 months |
| Toddler 6 | 22 | 5 | 14.2 | 12-24 months |
| Toddler 7 | 23 | 6 | 15.2 | 2-4 years |
| Toddler 8 | 24 | 7 | 16 | 2-4 years |
| Toddler 9 | 25 | 8 | 16.8 | 2-4 years |
| Toddler 10 | 26 | 9 | 17.5 | 2-4 years |
| Toddler 11 | 27 | 10 | 18.5 | 2-4 years |
| Little Kid 12 | 29 | 11 | 19.3 | 4-6 years |
| Little Kid 13 | 30 | 12 | 20.1 | 4-6 years |
| Little Kid 1 | 31 | 13 | 20.8 | 4-6 years |
| Little Kid 2 | 33 | 1 | 21.6 | 4-6 years |
| Little Kid 3 | 35 | 2 | 22.4 | 6-9 years |
| Big Kid 4 | 37 | 3 | 23.4 | 6-9 years |
| Big Kid 5 | 38 | 4 | 24.1 | 10-12 years |
| Big Kid 6 | 39 | 5 | 24.9 | 10-12 years |
| Big Kid 7 | 40 | 6 | 25.9 | 10-12 years |