US UK EU
5.5 5
6 5.5 39
6.5 6 39.5
7 6.5 40
7.5 7 40.5
8 7.5 41
8.5 8 42
9 8.5 42.5
9.5 9 43
10 9.5 44
10.5 10 44.5
11 10.5 45
11.5 11 46
12 11.5 47
12.5 12 47.5
13 12.5
13.5 13