Kilometers Per Hour to Miles Per Hour (km/h to mph)
1 kilometer per hour = 0.62137119 miles per hour
How to convert kilometers per hour to miles per hour
mph = km/h ÷ 1.609344
Example: 20 ÷ 1.609344 = 12.4274, so 20 kilometers per hour = 12.4274 miles per hour.
Km/h to mph is useful for drivers renting a car in the US or UK and for comparing car performance figures.
Typical European limits convert as follows: 50 km/h ≈ 31 mph in towns, 90 km/h ≈ 56 mph on country roads and 130 km/h ≈ 81 mph on motorways.
Kilometers Per Hour to Miles Per Hour conversion table
| Kilometers Per Hour (km/h) | Miles Per Hour (mph) |
|---|---|
| 10 km/h | 6.2137 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 |
| 200 km/h | 124.2742 mph |
| 300 km/h | 186.4114 mph |
What is a kilometer per hour?
Kilometers per hour is the speed unit on road signs and speedometers in most countries. Dividing by 3.6 gives meters per second, the SI unit used in physics.
What is a mile per hour?
Miles per hour is the road speed unit in the United States and the United Kingdom. One mph is exactly 1.609344 km/h, because the mile is defined as 1,609.344 meters.
Frequently asked questions
How many miles per hour are in one kilometer per hour?
One kilometer per hour equals 0.62137119 miles per hour.
How do I convert kilometers per hour to miles per hour?
Use the formula mph = km/h ÷ 1.609344. 20 ÷ 1.609344 = 12.4274, so 20 kilometers per hour = 12.4274 miles per hour.
What is 300 km/h in mph?
300 km/h = 186.4114 mph.
How do I convert miles per hour back to kilometers per hour?
Use the inverse formula km/h = mph × 1.609344, or open the Miles Per Hour to Kilometers Per Hour converter.