Convert mile/hour to kilometer/hour
Please provide values below to convert mile/hour [mi/h] to kilometer/hour [km/h], or Convert kilometer/hour to mile/hour.
1 mi/h = 1.60934399987 km/h. To convert mile/hour to kilometer/hour, multiply the value by 1.60934399987; to go the other way, divide by it (1 km/h = 0.621371192287 mi/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 mi/h = 1.60934399987 km/h
- 1 km/h = 0.621371192287 mi/h
- 10 mi/h = 16.0934399987 km/h
- 100 mi/h = 160.934399987 km/h
How to Convert Mile/hour to Kilometer/hour
1 mi/h = 1.60934399987125 km/h
Example: convert 15 mi/h to km/h:
15 mi/h = 15 × 1.60934399987125 km/h = 24.1401599980688 km/h
Mile/hour to Kilometer/hour Conversion Table
| mile/hour | kilometer/hour |
|---|---|
| 1 mi/h | 1.60934399987 km/h |
| 2 mi/h | 3.21868799974 km/h |
| 3 mi/h | 4.82803199961 km/h |
| 5 mi/h | 8.04671999936 km/h |
| 10 mi/h | 16.0934399987 km/h |
| 20 mi/h | 32.1868799974 km/h |
| 50 mi/h | 80.4671999936 km/h |
| 100 mi/h | 160.934399987 km/h |
| 500 mi/h | 804.671999936 km/h |
| 1000 mi/h | 1609.34399987 km/h |
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.
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.
Frequently Asked Questions
What is 1 mile/hour in kilometer/hour?
1 mile/hour (mi/h) = 1.60934399987 kilometer/hour (km/h).
How do you convert mile/hour to kilometer/hour?
Multiply the mile/hour value by 1.60934399987. For example, 25 mi/h × 1.60934399987 = 40.2335999968 km/h.
What is 10 mile/hour in kilometer/hour?
10 mi/h = 16.0934399987 km/h.
Which unit is larger, the mile/hour or the kilometer/hour?
The mile/hour is the larger unit: 1 mi/h = 1.60934399987 km/h.