Mens
UK EU US
3 35.5 4
3.5 36 4.5
4 37 5
4.5 37.5 5.5
5 38 6
5.5 38.5 6.5
6 39 7
6.5 39.5 7.5
7 40.5 8
7.5 41 8
8 42 9
9 43 10
10 44.5 11
11 46 12
12 47 12

 

Womens

UK EU US
3 35.5 5.5
3.5 36 6
4 37 6.5
4.5 37.5 7
5 38 7.5
5.5 38 8
6 39 8.5
6.5 40 9
7 40.5 9.5
7.5 41 10