Speed Converter

Speed conversion allows you to convert between different units of speed such as kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), feet per second (ft/s), knots, and Mach. This is particularly useful for travel, sports, aviation, and understanding speed limits in different countries.

Converting Between Kilometers per Hour and Miles per Hour

Converting between kilometers per hour and miles per hour (km/h to mph or mph to km/h) is one of the most common speed conversions. This is particularly useful when traveling between countries that use different measurement systems, as kilometers per hour are used in most countries worldwide, while miles per hour are primarily used in the United States and the United Kingdom.

To convert from kilometers per hour to miles per hour, multiply the speed value by 0.621371. For example, 100 km/h equals 62.1371 mph (100 × 0.621371 = 62.1371).

To convert from miles per hour to kilometers per hour, multiply the speed value by 1.60934. For example, 60 mph equals 96.5604 km/h (60 × 1.60934 = 96.5604).

Common Speed Conversions

Other Speed Units

Our converter also supports other speed units such as meters per second (m/s), feet per second (ft/s), knots (kn), and Mach (M). Whether you're working with physics calculations, aviation, marine navigation, or just need to convert between different speed units, our speed converter provides quick and accurate conversions.