Welcome to the official On Running Sizing Guide. Use our detailed measurements below to find your correct fit for On running shoes, including exact footwear dimensions.
If you need any additional sizing help, feel free to reach out to our customer care team.
| US Men | US Women | UK Men | UK Women | EU | Foot Length (cm) | Foot Length (in) |
|---|---|---|---|---|---|---|
| 5 | 6.5 | 4.5 | 5.5 | 37 | 23.5 | 9.25 |
| 5.5 | 7 | 5 | 6 | 37.5 | 23.8 | 9.37 |
| 6 | 7.5 | 5.5 | 6.5 | 38 | 24.1 | 9.5 |
| 6.5 | 8 | 6 | 7 | 39 | 24.4 | 9.62 |
| 7 | 8.5 | 6.5 | 7.5 | 40 | 24.8 | 9.75 |
| 7.5 | 9 | 7 | 8 | 40.5 | 25.1 | 9.88 |
| 8 | 9.5 | 7.5 | 8.5 | 41 | 25.4 | 10.0 |
| 8.5 | 10 | 8 | 9 | 42 | 25.7 | 10.12 |
| 9 | 10.5 | 8.5 | 9.5 | 42.5 | 26.0 | 10.25 |
| 9.5 | 11 | 9 | 10 | 43 | 26.4 | 10.38 |
| 10 | 11.5 | 9.5 | 10.5 | 44 | 26.7 | 10.5 |
| 10.5 | 12 | 10 | 11 | 44.5 | 27.0 | 10.62 |
| 11 | 12.5 | 10.5 | 11.5 | 45 | 27.3 | 10.75 |
| 11.5 | 13 | 11 | 12 | 45.5 | 27.6 | 10.87 |
| 12 | 13.5 | 11.5 | 12.5 | 46 | 28.0 | 11.0 |
| 12.5 | 14 | 12 | 13 | 46.5 | 28.3 | 11.12 |
| 13 | 14.5 | 12.5 | 13.5 | 47 | 28.6 | 11.25 |
| 13.5 | 15 | 13 | 14 | 47.5 | 29.0 | 11.38 |
| 14 | 15.5 | 13.5 | 14.5 | 48 | 29.3 | 11.5 |
| 14.5 | 16 | 14 | 15 | 48.5 | 29.6 | 11.62 |
| 15 | 16.5 | 14.5 | 15.5 | 49 | 30.0 | 11.75 |