| US Size | C4 | C5 | C6 | C6.5 | C7 | C7.5 | C8 | C8.5 | C9 | C9.5 | C10 | C10.5 | C11 | C11.5 | C12 | C12.5 | C13 | C13.5 |
| Europe | 19 | 20 | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 26 | 27 | 27.5 | 28 | 28.5 | 29 | 30 | 31 | 31.5 |
| UK | 3 | 4 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 |
| Length | 4.8" | 4.9" | 5.3" | 5.4" | 5.5" | 5.7" | 5.9" | 6" | 6.3" | 6.5" | 6.7" | 6.8" | 6.9" | 7" | 7.2" | 7.5" | 7.7" | 7.9" |
| Approximate Age | 12-18 months | 12-18 months | 18 months-2.5 years | 18 months-2.5 years | 18 months-2.5 years | 18 months-2.5 years | 3-4 years | 3-4 years | 3-4 years | 3-4 years | 5.5-6 years | 5.5-6 years | 5.5-6 years | 5.5-6 years | 6.5 years | 6.5 years | 6.5 years | 6.5 years |
**C: Toddler or Little Kid sizing