Convert kilometer/hour to mile/hour
Please provide values below to convert kilometer/hour [km/h] to mile/hour [mi/h], or Convert mile/hour to kilometer/hour.
1 km/h = 0.621371192287 mi/h. To convert kilometer/hour to mile/hour, multiply the value by 0.621371192287; to go the other way, divide by it (1 mi/h = 1.60934399987 km/h). Both units measure speed and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 km/h = 0.621371192287 mi/h
- 1 mi/h = 1.60934399987 km/h
- 10 km/h = 6.21371192287 mi/h
- 100 km/h = 62.1371192287 mi/h
How to Convert Kilometer/hour to Mile/hour
1 km/h = 0.621371192287044 mi/h
Example: convert 15 km/h to mi/h:
15 km/h = 15 × 0.621371192287044 mi/h = 9.32056788430566 mi/h
Kilometer/hour to Mile/hour Conversion Table
| kilometer/hour | mile/hour |
|---|---|
| 1 km/h | 0.621371192287 mi/h |
| 2 km/h | 1.24274238457 mi/h |
| 3 km/h | 1.86411357686 mi/h |
| 5 km/h | 3.10685596144 mi/h |
| 10 km/h | 6.21371192287 mi/h |
| 20 km/h | 12.4274238457 mi/h |
| 50 km/h | 31.0685596144 mi/h |
| 100 km/h | 62.1371192287 mi/h |
| 500 km/h | 310.685596144 mi/h |
| 1000 km/h | 621.371192287 mi/h |
Kilometer/hour
Kilometer per hour (km/h) is a unit of speed expressing the number of kilometers traveled in one hour.
History/Origin
The km/h unit originated from the metric system, developed in France during the late 18th century, and became widely adopted for measuring speed in transportation and scientific contexts.
Current Use
Km/h is commonly used worldwide to specify vehicle speeds, speed limits, and other applications involving the measurement of speed in everyday life and transportation systems.
Mile/hour
Mile per hour (mi/h) is a unit of speed representing the number of miles traveled in one hour.
History/Origin
The mile per hour has been used primarily in the United States and the United Kingdom for measuring speed, especially in transportation, since the adoption of the imperial system. Its usage dates back to the widespread use of miles as a distance measure before metric standardization.
Current Use
Today, mi/h is commonly used in the United States and some other countries to express vehicle speeds, speed limits, and other transportation-related velocities. It remains a standard unit in contexts where the imperial system is prevalent.
Frequently Asked Questions
What is 1 kilometer/hour in mile/hour?
1 kilometer/hour (km/h) = 0.621371192287 mile/hour (mi/h).
How do you convert kilometer/hour to mile/hour?
Multiply the kilometer/hour value by 0.621371192287. For example, 25 km/h × 0.621371192287 = 15.5342798072 mi/h.
What is 10 kilometer/hour in mile/hour?
10 km/h = 6.21371192287 mi/h.
Which unit is larger, the kilometer/hour or the mile/hour?
The mile/hour is the larger unit: 1 km/h equals only 0.621371192287 mi/h.