Free Online Calculators
Kilometer per hour → Miles per hour
1 kilometer per hour = 0.621371 mph, and 1 mile per hour = 1.60934 km/h.
Reverse: MPH to KM/H Converter
Speed limits, car top speeds and wind speeds are given in km/h outside the US and UK. The chart shows common limits from city streets to motorways.
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| km/h | mph |
|---|---|
| 10 km/h | 6.21371 mph |
| 20 km/h | 12.4274 mph |
| 30 km/h | 18.6411 mph |
| 40 km/h | 24.8548 mph |
| 50 km/h | 31.0686 mph |
| 60 km/h | 37.2823 mph |
| 70 km/h | 43.496 mph |
| 80 km/h | 49.7097 mph |
| 90 km/h | 55.9234 mph |
| 100 km/h | 62.1371 mph |
| 110 km/h | 68.3508 mph |
| 120 km/h | 74.5645 mph |
| 130 km/h | 80.7783 mph |
| 140 km/h | 86.992 mph |
| 150 km/h | 93.2057 mph |
| 160 km/h | 99.4194 mph |
| 180 km/h | 111.847 mph |
| 200 km/h | 124.274 mph |
| 250 km/h | 155.343 mph |
| 300 km/h | 186.411 mph |
Calculated with the same formula as the converter, rounded to six significant digits.
1 kilometer per hour equals 0.621371 mph. Formula: mph = km/h × 0.621371.
10 km/h = 6.21371 mph, because 10 × 0.621371 = 6.21371.
1 mile per hour equals 1.60934 km/h. To convert back, divide by 0.621371.