Converters
MPH to KPH Converter
Convert miles per hour to kilometers per hour and back. Useful for driving, sports, and weather.
Kilometers Per Hour
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How It Works
1 mph = 1.60934 km/h. Multiply mph by 1.60934 to get km/h. To reverse: divide km/h by 1.60934.
Example
60 mph = 96.56 km/h (US highway). 100 km/h = 62.14 mph (Canadian speed limit). 25 mph = 40.23 km/h (school zone).
Frequently Asked Questions
What is 100 km/h in mph?
100 km/h Γ· 1.609 = 62.14 mph. The common Canadian and European highway speed of 100 km/h is about 62 mph.
How fast is the speed of sound in mph?
At sea level at 68Β°F, sound travels at about 767 mph (1,235 km/h).
How fast do commercial planes fly?
Typical cruising speed is 550β600 mph (885β965 km/h), just under the speed of sound.