Convert km/h to mph instantly — with a table, common speeds, and a live calculator.
1 km/h equals 0.621 mph.
| km/h | mph |
|---|---|
| 1 km/h | 0.621 mph |
| 2 km/h | 1.24 mph |
| 3 km/h | 1.86 mph |
| 5 km/h | 3.11 mph |
| 10 km/h | 6.21 mph |
| 15 km/h | 9.32 mph |
| 20 km/h | 12.43 mph |
| 25 km/h | 15.53 mph |
| 30 km/h | 18.64 mph |
| 40 km/h | 24.85 mph |
| 50 km/h | 31.07 mph |
| 55 km/h | 34.18 mph |
| 60 km/h | 37.28 mph |
| 65 km/h | 40.39 mph |
| 70 km/h | 43.5 mph |
| 80 km/h | 49.71 mph |
| 90 km/h | 55.92 mph |
| 100 km/h | 62.14 mph |
| 120 km/h | 74.56 mph |
| 150 km/h | 93.21 mph |
| 200 km/h | 124.27 mph |
| 300 km/h | 186.41 mph |
| mph | km/h |
|---|---|
| 1 mph | 1.61 km/h |
| 2 mph | 3.22 km/h |
| 3 mph | 4.83 km/h |
| 5 mph | 8.05 km/h |
| 10 mph | 16.09 km/h |
| 15 mph | 24.14 km/h |
| 20 mph | 32.19 km/h |
| 25 mph | 40.23 km/h |
| 30 mph | 48.28 km/h |
| 40 mph | 64.37 km/h |
| 50 mph | 80.47 km/h |
| 55 mph | 88.51 km/h |
| 60 mph | 96.56 km/h |
| 65 mph | 104.61 km/h |
| 70 mph | 112.65 km/h |
| 80 mph | 128.75 km/h |
| 90 mph | 144.84 km/h |
| 100 mph | 160.93 km/h |
| 120 mph | 193.12 km/h |
| 150 mph | 241.4 km/h |
| 200 mph | 321.87 km/h |
| 300 mph | 482.8 km/h |
| km/h | mph |
|---|---|
| 5 km/h | 3.11 mph |
| 10 km/h | 6.21 mph |
| 20 km/h | 12.43 mph |
| 30 km/h | 18.64 mph |
| 40 km/h | 24.85 mph |
| 50 km/h | 31.07 mph |
| 60 km/h | 37.28 mph |
| 70 km/h | 43.5 mph |
| 80 km/h | 49.71 mph |
| 100 km/h | 62.14 mph |
| 120 km/h | 74.56 mph |
| 200 km/h | 124.27 mph |
Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots (one nautical mile per hour) come from maritime and aviation use. One mile per hour is defined as exactly 0.44704 meters per second, and one knot as exactly 1.852 km/h.
Speed conversions are exact and rest on fixed factors — for more unit pairs, use our speed conversion hub.
1 km/h equals 0.621 mph.
2 km/h equal 1.24 mph.
Divide the speed in km/h by 1.61 to get mph.
Yes. Speed conversions are exact; the values here are only rounded to two decimal places.
Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots come from maritime and aviation use. All conversions rest on fixed factors.
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