US Men US Women UK EU Length (cm)
1 - 0.5 32.5 19
1.5 3 1 33 19.5
2 3.5 1.5 33.5 20
2.5 4 2 34.5 20.5
3 4.5 2.5 35 21
3.5 5 3 35.5 21.5
4 5.5 3.5 36 22
4.5 6 4 37 22.5
5 6.5 4.5 37.5 23
5.5 7 5 38 23.5
6 7.5 5.5 38.5 24
6.5 8 6 39.5 24.5
7 8.5 6.5 40 25
7.5 9 7 40.5 25.5
8 9.5 7.5 41.5 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 45.5 29.5
12 13.5 11.5 46.5 30
12.5 14 12 47 30.5
13 15 12.5 47.5 31
14 - 13.5 49 32
15 - 14.5 50 33
16 - 15.5 51 34
17 - 16.5 52 35
18 - 17.5 53 36
19 - 18.5 54 37
20 - 19.5 55 38