| US Sizes | Inches | CM |
|---|---|---|
| Infant | ||
| 2 | 4 6/16″ | 11.2 |
| Toddler | ||
| 4 | 5″ | 12.8 |
| 5 | 5 6/16″ | 13.7 |
| 6 | 5 12/16″ | 14.5 |
| 7 | 6 1/16″ | 15.4 |
| Little Kid | ||
| 8 | 6 6/16″ | 16.2 |
| 9 | 6 12/16″ | 17.1 |
| 10 | 7 1/16″ | 17.9 |
| 11 | 7 6/16″ | 18.8 |
| 12 | 7 12/16″ | 19.6 |
| 13 | 8 1/16″ | 20.4 |
| Big Kid | ||
| 1 | 8 6/16″ | 21.2 |
| 2 | 8 11/16″ | 22.0 |
| 3 | 9″ | 22.8 |
| 4 | 9 6/16″ | 23.6 |
| 5 | 9 10/16″ | 24.4 |
| 6 | 9 15/16″ | 25.2 |
| 7 | 10 4/16″ | 26.0 |
