Convert length between meters, kilometers, inches, feet, yards, and miles.
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Length is a physical quantity representing the distance between two points. Historically, units of length were often based on human body proportions — hence the inch, foot, and yard. Today the metric system is the standard, with the meter as the base unit. The US and Myanmar are the only countries where the imperial system still prevails in daily life.
Main Length Measurement Units
- Meter (m) — the SI base unit.
- Kilometer (km) — 1,000 m. The standard for distances between cities.
- Inch (in) — 2.54 cm. Used in electronics and construction.
- Foot (ft) — 30.48 cm. The standard for altitude in aviation.
- Yard (yd) — 91.44 cm. Common in sports, particularly American football.
- Mile (mi) — 1.609 km. The standard for road distances in the US and the UK.
Common Length Conversions
- 1 m = 3.281 ft = 39.37 in
- 1 km = 0.621 mi
- 1 ft = 30.48 cm
- 1 mi = 1.609 km