Size Chart: Men's On Running
On Running Size Conversion
Men's On Running
| CM | INCHES | US | UK | EU |
| 25.0 | 9.84 | 7 | 6.5 | 40 |
| 25.5 | 10.04 | 7.5 | 7 | 40.5 |
| 26.0 | 10.24 | 8 | 7.5 | 41 |
| 26.5 | 10.43 | 8.5 | 8 | 42 |
| 27.0 | 10.63 | 9 | 8.5 | 42.5 |
| 27.5 | 10.83 | 9.5 | 9 | 43 |
| 28.0 | 11.02 | 10 | 9.5 | 44 |
| 28.5 | 11.22 | 10.5 | 10 | 44.5 |
| 29.0 | 11.42 | 11 | 10.5 | 45 |
| 29.5 | 11.61 | 11.5 | 11 | 46 |
| 30.0 | 11.81 | 12 | 11.5 | 47 |
| 30.5 | 12.01 | 12.5 | 12 | 47.5 |
| 31.0 | 12.20 | 13 | 12.5 | 48 |
| 31.5 | 12.40 | 14 | 13.5 | 49 |