Size Guide — On (EN)

On uses US sizing. Each product lists the size as US · EU. The CM column is your foot length. If you are between two sizes, On recommends sizing up.

MenFootwear

US EU UK CM
7 40 6.5 25
7.5 40.5 7 25.5
8 41 7.5 26
8.5 42 8 26.5
9 42.5 8.5 27
9.5 43 9 27.5
10 44 9.5 28
10.5 44.5 10 28.5
11 45 10.5 29
11.5 46 11 29.5
12 47 11.5 30
12.5 47.5 12 30.5
13 48 12.5 31
13.5 48.5 13 31.5
14 49 13.5 32
15 50 14.5 33

WomenFootwear

US EU UK CM
5 36 3 22
5.5 36.5 3.5 22.5
6 37 4 23
6.5 37.5 4.5 23.5
7 38 5 24
7.5 38.5 5.5 24.5
8 39 6 25
8.5 40 6.5 25.5
9 40.5 7 26
9.5 41 7.5 26.5
10 42 8 27
10.5 42.5 8.5 27.5
11 43 9 28
12 44 10 29

Source: official On size chart (on.com)

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