Kilometers per Hour to Miles per Hour

What are Kilometers per Hour and Miles per Hour?

Kilometers per hour (km/h) is a unit of speed in the metric system. It measures the number of kilometers traveled in one hour. It is used in most countries around the world for speed limits and vehicle speedometers.

Miles per hour (mph) is a unit of speed in the imperial system. It measures the number of miles traveled in one hour. It is the standard speed measurement in the United States, the United Kingdom, and several other countries.

KM/H to MPH Formula

To convert kilometers per hour to miles per hour, use this formula:

Common Speed Conversions

• 50 km/h = 31.07 mph (city speed limit)
• 80 km/h = 49.71 mph
• 100 km/h = 62.14 mph (highway speed)
• 120 km/h = 74.56 mph (motorway speed)
• 130 km/h = 80.78 mph (European motorway)
• 200 km/h = 124.27 mph

Common Applications

• Travel: understanding speed limits when driving in the US or UK
• Sports: comparing speeds in athletics, cycling, and motorsport
• Aviation: converting wind and airspeed measurements
• Shipping: converting vessel speeds for international logistics