Brooks International Footwear Size Chart
US US UK UK Europe Japan Japan
Men Women Men Women Unisex Men (cm) Women (cm)
3.5 5 2.5 3 35.5 22.5 22
4 5.5 3 3.5 36 23 22.5
4.5 6 3.5 4 36.5 23 23
5 6.5 4 4.5 37.5 23.5 23.5
5.5 7 4.5 5 38 24 24
6 7.5 5 5.5 38.5 24.5 24.5
6.5 8 5.5 6 39 25 25
7 8.5 6 6.5 40 25 25.5
7.5 9 6.5 7 40.5 25.5 26
8 9.5 7 7.5 41 26 26.5
8.5 10 7.5 8 42 26.5 27
9 10.5 8 8.5 42.5 27 28
9.5 11 8.5 9 43 27.5 28.5
10 11.5 9 9.5 44 28 29
10.5 12 9.5 10 44.5 28.5 29.5
11 12.5 10 10.5 45 29 30
11.5 13 10.5 11 45.5 29.5  
12   11 11.5 46 30  
12.5   11.5 12 46.5 30.5  
13   12 13 47.5 31  
14   13 14 48.5 32  
15   14 15 49.5 33  
16   15   50.5 34