What is kilometre per hour?

Kilometre per hour is a unit of speed equal to one kilometre travelled in one hour. It is the most widely used unit for road speed limits, vehicle speedometers, and wind speeds in metric countries.

What is mile per hour?

Mile per hour is a unit of speed equal to one mile travelled in one hour. It is the standard unit for road speeds, vehicle performance ratings, and weather reports in the United States and United Kingdom.

Worked examples

1 kilometre per hour = 0.62137119 mile per hour

1 mile per hour = 0.44704 metre per second

More Speed conversions

• Convert kilometre per hour to metre per second
• Convert kilometre per hour to mile per hour
• Convert kilometre per hour to knot
• Convert kilometre per hour to foot per second
• Convert kilometre per hour to metre per minute
• Convert kilometre per hour to kilometre per second
• Convert kilometre per hour to mach (approx at sea level)
• Convert kilometre per hour to centimetre per second
• Convert kilometre per hour to mile per minute

Assumption: Mach uses an approximate sea-level reference (about 340.29 m/s).