Speed Conversions

Convert between speed units including miles per hour, kilometers per hour, knots, and meters per second.

Miles per Hour to Kilometers per Hour
mph → km/h
Kilometers per Hour to Miles per Hour
km/h → mph
Knots to Kilometers per Hour
kn → km/h
Kilometers per Hour to Knots
km/h → kn
Meters per Second to Kilometers per Hour
m/s → km/h
Kilometers per Hour to Meters per Second
km/h → m/s

Popular Speed Conversions

1 mph to kph5 mph to kph10 mph to kph100 mph to kph1 kph to mph5 kph to mph10 kph to mph100 kph to mph1 knot to kph5 knots to kph10 knots to kph100 knots to kph1 kph to knots5 kph to knots10 kph to knots100 kph to knots

About Speed Conversions

Speed conversions are needed for travel, aviation, marine navigation, and science. The US uses miles per hour, most countries use kilometers per hour, maritime and aviation use knots, and scientists use meters per second. Our converters handle all common speed conversions.