Mile [mi] to Kilometer [km] Converter

Definition: A mile (mi) is a unit of length in the imperial and United States customary systems. It is defined as exactly 1,609.344 meters or 5,280 feet.

History/origin: The mile has ancient origins, dating back to Roman times. It was originally based on the distance covered by a thousand paces of a Roman legion.

Current use: Miles are commonly used in the United States, Canada, and the United Kingdom for measuring longer distances, such as the distance between cities or the length of a road. They are also used in sports, such as running and cycling.

Definition: A kilometer (km) is a unit of length in the metric system, equal to one thousand meters. It is a decimal multiple of the meter, the SI base unit of length.

History/origin: The kilometer is derived from the meter, which was defined in the late 18th century during the French Revolution. The prefix 'kilo-' denotes one thousand.

Current use: Kilometers are commonly used for measuring longer distances, such as the distance between cities, the length of a road, or the distance covered in a race. They are the standard unit of distance in many countries.