Foot to Kilometer Converter

A foot is a unit of length in the imperial and US customary systems equal to 12 inches or approximately 0.305 meters. It is one of the most commonly used units in these systems.

The foot has ancient origins, originally based on the length of a human foot. Various civilizations used foot-based measurements, but the modern foot was standardized in England. The international foot was defined as exactly 0.3048 meters in 1959.

Feet are extensively used in the United States for measuring height of people and buildings, room dimensions, altitude in aviation, and in construction. They're standard for architectural drawings, real estate listings, and everyday measurements in countries using imperial units.

A kilometer (km) is a unit of length in the metric system equal to 1,000 meters. It is one of the most commonly used units for measuring medium to long distances on Earth.

The kilometer was first introduced in 1795 during the French Revolution as part of the original metric system. The term comes from the Greek word 'khilioi' meaning 'thousand' and the French word 'mètre'. It became widely adopted throughout Europe in the 19th century and is now the standard unit for road distances in most countries worldwide.

Kilometers are extensively used for measuring road distances, city planning, geographical surveys, and athletic events like marathons. Most countries use kilometers for speed limits (km/h) and fuel efficiency measurements. It's the standard unit for mapping and GPS navigation systems globally.