mph ↔ km/h ↔ m/s ↔ knots ↔ mach
| Speed | mph | km/h |
|---|---|---|
| Walking | 3.1 | 5 |
| Running (jog) | 6 | 10 |
| Usain Bolt (peak) | 27.8 | 44.7 |
| City driving | 30 | 48 |
| Highway driving | 65 | 105 |
| Commercial aircraft | 575 | 925 |
| Speed of sound (Mach 1) | 767 | 1,235 |
| Space Station orbit | 17,150 | 27,600 |
| Conversion | Factor |
|---|---|
| mph → km/h | × 1.609 |
| km/h → mph | × 0.6214 |
| m/s → km/h | × 3.6 |
| knots → mph | × 1.151 |
| Mach 1 | 767 mph / 1,235 km/h |