How to convert miles per hour to kilometers per hour
km/h = mph × 1.6093
Multiply the value in miles per hour by 1.6093. To go the other way, divide by the same number, or multiply by 0.621371. For example, 5 mph × 1.6093 = 8.0467 km/h.
About the units
Miles per Hour (mph). Exactly 0.44704 m/s. Speed limits in the US and UK.
Kilometers per Hour (km/h). Speed limits and car speedometers in most countries.
Other speed conversions
Kilometers per Hour to Miles per Hour · Kilometers per Hour to Meters per Second · Kilometers per Hour to Knots · Kilometers per Hour to Feet per Second · Miles per Hour to Kilometers per Hour · Miles per Hour to Meters per Second · Miles per Hour to Knots · Miles per Hour to Feet per Second · Meters per Second to Kilometers per Hour · Knots to Kilometers per Hour · Feet per Second to Kilometers per Hour