Kids' Shoes 

(Inches)

US Kids EU UK CM
3.5Y 35.5 3 22.2
4Y 36 3.5 22.4
4.5Y 36.5 4 22.7
5Y 37.5 4.5 23.2
5.5Y 38 5 23.5
6Y 38.5 5.5 23.8
6.5Y 39 6 24.3
7Y 40 6 24.6