Select a category
Conversion Formula:
Convert Foot to Kilometer (ft to km) instantly with accurate, readable results.
Use our Length Unit Converter to quickly convert between meters, kilometers, feet, inches, miles, and more. This powerful unit conversion tool supports both metric and imperial systems, making it ideal for travel, engineering, education, and everyday use. Whether you're calculating distances or comparing measurements, our length unit conversion calculator ensures fast and accurate results every time.
Foot (ft) — Imperial/US unit defined exactly as 0.3048 meters
Common for human height, room dimensions, and construction. Part of the feet–inches notation in building trades.
- Symbol: ft
- System: Imperial/US customary
- Exact relations: 1 ft = 0.3048 m = 30.48 cm = 304.8 mm (exact)
- Other relations: 1 ft = 12 in, 3 ft = 1 yd
- Typical examples: ceiling heights, floor plans, ladder lengths
Kilometer (km) — SI unit of length equal to 1,000 meters
Used worldwide for road distances, mapping, and athletics. In the metric system it scales cleanly with meters and centimeters for everyday to large-scale measurements.
- Symbol: km
- System: SI derived unit
- Exact relations: 1 km = 1,000 m = 10⁵ cm = 10⁶ mm
- Imperial/US equivalents: 1 km ≈ 0.621371 mi ≈ 3,280.8399 ft ≈ 1,093.6133 yd
- Typical examples: intercity travel; 5 km and 10 km races