US UK EU FOOT LENGTH (CM)
5 3.0 36.0 22
5.5 3.5 36.5 22.5
6 4.0 37.0 22.9
6.5 4.5 37.5 23.5
7 5.0 38.0 24
7.5 5.5 38.5 24.6
8 6.0 39.0 25
8.5 6.5 39.5 25.4
9 7.0 40.0 26
9.5 7.5 40.5 26.2
10 8.0 41.0 26.5
10.5 8.5 41.5 27
11 9.0 42.0 27.5
11.5 9.5 42.5 27.9
12 10.0 43.0 28.5