Free Online Calculators
Miles per hour → Kilometer per hour
1 mile per hour = 1.60934 km/h, and 1 kilometer per hour = 0.621372 mph.
Reverse: KM/H to MPH Converter
Driving in the US or UK with a metric speedometer, or reading a US car review? The chart lists the usual speed limits in both units.
| mph | km/h |
|---|---|
| 5 mph | 8.04671 km/h |
| 10 mph | 16.0934 km/h |
| 15 mph | 24.1401 km/h |
| 20 mph | 32.1869 km/h |
| 25 mph | 40.2336 km/h |
| 30 mph | 48.2803 km/h |
| 35 mph | 56.327 km/h |
| 40 mph | 64.3737 km/h |
| 45 mph | 72.4204 km/h |
| 50 mph | 80.4671 km/h |
| 55 mph | 88.5138 km/h |
| 60 mph | 96.5606 km/h |
| 65 mph | 104.607 km/h |
| 70 mph | 112.654 km/h |
| 75 mph | 120.701 km/h |
| 80 mph | 128.747 km/h |
| 90 mph | 144.841 km/h |
| 100 mph | 160.934 km/h |
| 120 mph | 193.121 km/h |
| 150 mph | 241.401 km/h |
| 200 mph | 321.869 km/h |
Calculated with the same formula as the converter, rounded to six significant digits.
1 mile per hour equals 1.60934 km/h. Formula: km/h = mph × 1.60934.
10 mph = 16.0934 km/h, because 10 × 1.60934 = 16.0934.
1 kilometer per hour equals 0.621372 mph. To convert back, divide by 1.60934.