Convert between kilometres per hour, miles per hour, metres per second, knots, feet per second and Mach. Enter any value and see all results simultaneously.
| Unit | Value |
|---|
| Reference | km/h | mph | m/s |
|---|---|---|---|
| Walking (average) | 5 | 3.1 | 1.4 |
| Cycling (average) | 20 | 12.4 | 5.6 |
| City speed limit (EU) | 50 | 31 | 13.9 |
| Motorway (UK) | 113 | 70 | 31.3 |
| Sound (sea level) | 1235 | 767 | 343 |
| Light | 1,079,252,848 | 670,616,629 | 299,792,458 |