Please order in USA Men's sizes only. For example,
if you wear a size 23.5 Japanese, then order size 5.5

USA
Mens
USA
Womens
UK
European Japanese
4 5.5 3.5 36 22
5 6.5 4.5 37 22.5
5.5 7 5 38 23.5
6 7.5 5.5 38.5 24
6.5 8 6 39 24.5
7 8.5 6.5 40 25
7.5 9 7 40.5 25.5
8 9.5 7.5 41 26
8.5 10 8 42 26.5
9 10.5 8.5 42.5 27
9.5 11 9 43 27.5
10 11.5 9.5 44 28
10.5 12 10 44.5 28.5
11 12.5 10.5 45 29
11.5 13 11 46 29.5
12 13.5 11.5 46.5 30
13 14.5 12.5 48 31