*These charts are for reference only. Fit may vary depending on the construction, materials and manufacturer.
| US |
Inches |
CM |
| Infant US 2 |
3 7/8 |
10 |
| Infant US 2.5 |
4 1/4 |
10.7 |
| Toddler US 3.5 |
4 3/4 |
11.9 |
| Toddler US 5 |
5 1/4 |
13.2 |
| Toddler US 6 |
5 3/8 |
13.8 |
| Toddler US 7 |
5 7/8 |
14.8 |
| Toddler US 8 |
6 1/8 |
15.7 |
| Little kid US 9.5 |
6 3/4 |
17 |
| Little kid US 10.5 |
6 7/8 |
17.6 |
| Little kid US 12 |
7 1/2 |
18.9 |
| Little kid US 13 |
7 3/4 |
19.9 |
| Little kid US 13.5 |
8 1/4 |
20.8 |
| Big kid US 1.5 |
8 1/2 |
21.5 |
| Big kid US 2.5 |
8 7/8 |
22.4 |
