US UK EU
3.5 36
4.25 37
5 38
5.5 5.75 39
6.5 6.5 40
7.5 7.25 41
7.5 - 8 7.5 41.5
8 8 42
8.5 8.5 42.5
9 9 43
9.25 9.25 43.5
9.5 9.5 44
10 10 44.5
10.5 10.25 45
11.5 11 46
12 11.75 47
12.5 48
13.25 49