Kilometer per Hour to Mile per Hour Converter
1 km/h = 0.621371 mph
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FORMULA
1 km/h = 0.621371 mph
CONVERSION TABLE
| Kilometer per Hour (km/h) | Mile per Hour (mph) |
|---|---|
| 1 km/h | 0.621371 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
| 250 km/h | 155.3428 mph |
| 500 km/h | 310.6856 mph |
| 1,000 km/h | 621.3712 mph |
COMMON VALUES
RELATED CONVERSIONS
About Kilometer per Hour (km/h)
Used for vehicle speedometers and speed limits in most countries outside the US and UK, the kilometer per hour is the most widely displayed speed unit on Earth. Highway speed limits typically range from 80 to 130 km/h, and weather services in metric countries report wind speeds in km/h.
About Mile per Hour (mph)
The standard speed unit for road traffic in the United States and the United Kingdom, miles per hour appears on speedometers, speed limit signs, and weather reports in those countries. Baseball pitching speeds, hurricane wind classifications, and tornado ratings on the Enhanced Fujita scale are also expressed in mph.
How to Convert Kilometer per Hour to Mile per Hour
The conversion formula is: 1 km/h = 0.621371 mph. To convert from Kilometer per Hour (km/h) to Mile per Hour (mph), use the formula above or the interactive converter at the top of this page.
Frequently Asked Questions
How many Mile per Hour in 1 Kilometer per Hour?
1 Kilometer per Hour (km/h) equals 0.621371 Mile per Hour (mph).
How to convert Kilometer per Hour to Mile per Hour?
Multiply the Kilometer per Hour value by 0.621371 to get the equivalent in Mile per Hour. Formula: 1 km/h = 0.621371 mph
What is the formula for Kilometer per Hour to Mile per Hour conversion?
1 km/h = 0.621371 mph
Glossary
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Mach Number
The ratio of an object's speed to the speed of sound in the surrounding medium.
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Knot
A unit of speed equal to one nautical mile per hour (1.852 km/h).
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Speed of Light
The exact speed at which light travels in vacuum: 299,792,458 meters per second, which since 1983 has been used to define the meter.