Convert kilometers per hour to miles per hour
1 kilometer per hour equals 0.621371 miles per hour. Type any number below — the other side updates instantly.
Kilometers per hour to miles per hour — quick reference
| kilometers per hour | miles per hour |
|---|---|
| 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 |
| 80 km/h | 49.7097 mph |
| 100 km/h | 62.1371 mph |
| 120 km/h | 74.5645 mph |
| 200 km/h | 124.274 mph |
How to convert
Multiply the number of kilometer per hours by 0.621371 to get mile per hours. To go the other way, multiply mile per hours by 1.6093 to get kilometer per hours. The conversion factor is fixed and exact, so you can use this on any value.
About these units
Kilometers per hour
- Definition
- Kilometers per hour (symbol: km/h) is a unit of speed expressing the number of kilometers traveled in one hour.
- History
- Kmh became the international standard for road speed during the 20th century as countries adopted the metric system.
- Current use
- The standard road-speed unit in nearly every country except the US and UK.
Miles per hour
- Definition
- Miles per hour (symbol: mph) is a unit of speed expressing the number of miles traveled in one hour. 1 mph equals about 1.609 km/h.
- History
- Mph entered widespread use with the spread of automobiles in the early 20th century. The US has used mph as the standard speed unit since road signage was federalized.
- Current use
- Mph is the standard speed unit on roads in the United States, the United Kingdom, and a few smaller nations.
Frequently asked
- How many miles per hour are in 1 kilometer per hour?
- 1 kilometer per hour = 0.621371 miles per hour.
- How do you convert kilometers per hour to miles per hour?
- Multiply the number of kilometer per hours by 0.621371 to get mile per hours. To go the other way, multiply mile per hours by 1.6093 to get kilometer per hours. The conversion factor is fixed and exact, so you can use this on any value.
- What is 60 kilometers per hour in miles per hour?
- 60 kilometers per hour = 37.2823 miles per hour.
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