Calculators/Speed Converter
Speed Converter
Convert between mph, km/h, m/s, knots, and ft/s.
1 mph = 1.609344 km/h
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 15 | 24.14016 |
| 20 | 32.18688 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 75 | 120.7008 |
| 100 | 160.9344 |
| 150 | 241.4016 |
| 200 | 321.8688 |
| 250 | 402.336 |
| 500 | 804.672 |
| 1,000 | 1,609.344 |
Speed Conversion Reference
| From | To |
|---|---|
| 1 mph | 1.609 km/h |
| 1 km/h | 0.621 mph |
| 1 knot | 1.151 mph / 1.852 km/h |
| 1 m/s | 2.237 mph / 3.6 km/h |
| Speed of light | 299,792 km/s |
Speed in Everyday Context
Walking speed is roughly 3 mph (5 km/h). A casual cyclist moves at about 15 mph (24 km/h). Highway driving in the US is typically 60–70 mph (97–113 km/h). The speed of sound is 767 mph (1,235 km/h) — that's Mach 1.
Runners often track their pace in minutes per mile or minutes per kilometer rather than speed. For race pacing and training calculations, use our Pace Calculator.