Length Converter — Convert Length & Distance Units

Convert length and distance units — meters, kilometers, miles, feet, inches, centimeters, yards, and more.

By SwiftCalcTools Editorial Team · Formula verified

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How to Use Length Converter

  1. 1Enter the required values in the input fields above.
  2. 2Click the Calculate button or results update instantly as you type.
  3. 3View your results in the output panel below the inputs.
  4. 4Adjust any values to recalculate instantly.

Frequently Asked Questions

1 metre = 3.28084 feet (or 3 feet 3.37 inches). 1 foot = 0.3048 metres (exactly, by definition). This is the international foot — the US survey foot (0.3048006 m) is slightly different but rarely used today.
1 inch = 2.54 centimetres (exactly). Multiply inches by 2.54 to get cm. Example: 5 ft 10 in = 70 inches = 70 × 2.54 = 177.8 cm. To go the other way: divide cm by 2.54 to get inches.
1 kilometre = 0.621371 miles. 1 mile = 1.60934 km. A quick approximation: 1 km ≈ 0.6 miles (5/8 mile). So 10 km ≈ 6 miles. The London Marathon (42.195 km) is 26.22 miles.
1 nautical mile = 1,852 metres (exactly). It is defined as one minute of arc of latitude along a meridian. Used in aviation and maritime navigation. 1 nautical mile per hour = 1 knot. A nautical mile is about 15% longer than a statute (land) mile (1.1508 miles).