Foot [ft] to Kilometer [km] Converter

Definition: A foot (ft) is a unit of length in the imperial and United States customary systems. It is defined as exactly 0.3048 meters.

History/origin: The foot has a long history, with its origins tracing back to ancient civilizations. It was often based on the length of a person's foot. The modern definition is based on the metric system.

Current use: Feet are commonly used in the United States, Canada, and the United Kingdom for measuring lengths, heights, and distances, particularly in construction, architecture, and everyday measurements.

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.