| US | Inches | CM |
| Infant US 0.5 | 3 1/4 | 8.3 |
| Infant US 1 | 3 1/2 | 8.9 |
| Infant US 1.5 | 3 5/8 | 9.2 |
| Infant US 2 | 3 3/4 | 9.5 |
| Infant US 2.5 | 4???? | 10.2 |
| Infant US 3 | 4 1/8 | 10.5 |
| Toddler US 3.5 | 4 1/4 | 10.8 |
| Toddler US 4 | 4 1/2 | 11.4 |
| Toddler US 4.5 | 4 5/8 | 11.7 |
| Toddler US 5 | 4 3/4 | 12.1 |
| Toddler US 5.5 | 5???? | 12.7 |
| Toddler US 6 | 5 1/8 | 13 |
| Toddler US 6.5 | 5 1/4 | 13.3 |
| Toddler US 7 | 5 1/2 | 14 |
| Toddler US 7.5 | 5 5/8 | 14.3 |
| Toddler US 8 | 5 3/4 | 14.6 |
| Toddler US 8.5 | 6???? | 15.2 |
| Toddler US 9 | 6 1/8 | 15.6 |
| Toddler US 9.5 | 6 1/4 | 15.9 |
| Toddler US 10 | 6 1/2 | 16.5 |
| Little kid US 10.5 | 6 5/8 | 16.8 |
| Little kid US 11 | 6 3/4 | 17.1 |
| Little kid US 11.5 | 7???? | 17.8 |
| Little kid US 12 | 7 1/8 | 18.1 |
| Little kid US 12.5 | 7 1/4 | 18.4 |
| Little kid US 13 | 7 1/2 | 19.1 |
| Little kid US 13.5 | 7 5/8 | 19.4 |
| Big kid US 1 | 7 3/4 | 19.7 |
| Big kid US 1.5 | 8???? | 20.3 |
| Big kid US? 2 | 8 1/8 | 20.6 |
| Big kid US? 2.5 | 8 1/4 | 21 |
| Big kid US? 3 | 8 1/2 | 21.6 |
| Big kid US? 3.5 | 8 5/8 | 21.9 |
| Big kid US? 4 | 8 3/4 | 22.2 |
| Big kid US? 4.5 | 9???? | 22.9 |
| Big kid US? 5 | 9 1/8 | 23.2 |
| Big kid US? 5.5 | 9 1/4 | 23.5 |
| Big kid US? 6 | 9 1/2 | 24.1 |
| Big kid US? 6.5 | 9 5/8 | 24.4 |
| Big kid US? 7 | 9 3/4 | 24.8 |
| Big kid US? 7.5 | 10???? | 25.2 |