Miles to Kilometers Converter

The mile (mi) is a unit of length in the imperial and US customary systems, equal to exactly 1,609.344 meters. It originates from the Roman "mille passus" (1,000 paces).

The kilometer (km) is a metric unit of length equal to 1,000 meters. It is the standard unit for expressing distances between geographical locations in most of the world.

Common uses: road distances, speed limits (mph vs km/h), running distances (a marathon is 26.2 miles or 42.195 km), and travel planning.