1 km/h = 0.621372 mph
Speed unit conversion guide
Convert speed readings between meters per second, kilometers per hour, miles per hour, and knots. Drivers abroad, runners tracking pace, sailors, and pilots routinely need to express the same motion in different units.
Kilometers per hour appear on vehicle speedometers and road signs in most countries. Miles per hour are standard in the United States. Knots measure nautical miles per hour and remain common in maritime and aviation contexts.
Sports enthusiasts may compare a running pace in minutes per kilometer with a treadmill display in mph—this converter helps once you know the speed in one of the supported units. Wind speeds in weather reports may also use km/h or mph depending on the country.
Share a converted speed with teammates or readers using the copy-link feature. Questions about the site are answered on the FAQ page linked below.
Popular speed conversions
- km/h to mph — multiply by 0.621371
- mph to km/h — multiply by 1.60934
- Knots to km/h — multiply by 1.852
- 100 km/h ≈ 62.14 mph
- 60 mph ≈ 96.56 km/h
Worked example
A highway limit of 130 km/h is about 80.78 mph. Wind at 30 knots is roughly 55.56 km/h or 34.52 mph.