Kids' Shoe Sizes (in centimeters)
Size 10 11 12 13 1 2
Length 17 17 ½ 18 19 20 21
Size 3 4 5 6 7 8
Length 22 22 ½ 23 24 25 26

How to Measure: Kids' Feet

Trace a bare or sock-covered foot, depending on how shoe will be worn, then measure the longest foot from the heel to the longest toe.