U.S. Size  UK EU LENGTH (CM)
7 6 39.5 24.5
7.5 6.5 40 25
8 7 41 25.4
8.5 7.5 41.5 25.7
9 8 42 26
9.5 8.5 42.5 26.5
10 9 43 27
10.5 9.5 44 27.5
11 10 44.5 28
11.5 10.5 45 28.3
12 11 46 28.7
12.5 11.5 46.5 29
13 12 47 29.5
U.S. Size  UK EU LENGTH (IN)
7 6 39.5 9.6
7.5 6.5 40 9.8
8 7 41 10.0
8.5 7.5 41.5 10.1
9 8 42 10.2
9.5 8.5 42.5 10.4
10 9 43 10.6
10.5 9.5 44 10.8
11 10 44.5 11
11.5 10.5 45 11.1
12 11 46 11.3
12.5 11.5 46.5 11.4
13 12 47 11.6