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Speed Converter

1 km/h = 0.621371 mph

mph = km/h ÷ 1.6093Decimals

Convert miles per hour, kilometers per hour, knots and meters per second. Pick any two units — the result updates as you type.

Popular speed conversions

km/h → mphKilometer per hour → mile per hour mph → km/hMile per hour → kilometer per hour kn → mphKnot → mile per hour kn → km/hKnot → kilometer per hour m/s → km/hMeter per second → kilometer per hour m/s → mphMeter per second → mile per hour

Speed units compared

Unit	Symbol	In meters per second
Meters per second	m/s	1 m/s = 1 m/s
Kilometers per hour	km/h	1 km/h = 0.277778 m/s
Miles per hour	mph	1 mph = 0.44704 m/s
Knots	kn	1 kn = 0.514444 m/s
Feet per second	ft/s	1 ft/s = 0.3048 m/s

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