ToolNest

Length Converter

Convert mm, cm, m, km, inches, feet, yards and miles instantly.

Reference (in meters):

  • 1 Millimeters (mm) = 0.001 meters
  • 1 Centimeters (cm) = 0.01 meters
  • 1 Kilometers (km) = 1,000 meters
  • 1 Inches (in) = 0.0254 meters
  • 1 Feet (ft) = 0.3048 meters
  • 1 Yards (yd) = 0.9144 meters
  • 1 Miles (mi) = 1,609.344 meters
  • 1 Nautical miles (nmi) = 1,852 meters
  • 1 Micrometers (µm) = 0.000001 meters

How to use the Length tool

  1. Enter your length in the fields above.
  2. Adjust any slider or type an exact number — the answer updates as you go.
  3. Copy the result and close the tab. Nothing you entered was sent anywhere.

About the Length tool

Enter a length, pick the unit you have, and read the value in any other unit live as you type. Includes metric, imperial and nautical units.

Conversions are exact by definition where possible: 1 inch is exactly 2.54 cm, 1 mile is exactly 1.609344 km, and 1 nautical mile is exactly 1,852 m.

Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.

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