US UK EU
6 4 37
6 - 6.5 4.5 37.5
6.5 5 38
6.5 - 7 5.5 38.5
7 6 39
7.5 6 - 6.5 39.5
8 6.5 40
8.5 6.5 - 7 40.5
9 7 41