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Length Converter

Convert between metres, centimetres, millimetres, kilometres, inches, feet, yards and miles.

  1. Type a value
  2. Choose the units
  3. The answer updates instantly
Runs in your browser. Your data and files never leave your device.

About the Length Converter

Convert any length or distance between metric and imperial units, from nanometres to light years. Type in either box to convert both ways; the full list shows your value in every unit.

Length Converter formula

1 inch = 2.54 cm (exactly)
1 foot = 0.3048 m
1 mile = 1.609344 km

Frequently asked questions

How many centimetres are in an inch?

Exactly 2.54 cm. The inch has been defined this way since 1959.

How do I convert feet and inches to cm?

Multiply the feet by 30.48, the inches by 2.54 and add them. 5 ft 9 in = 152.4 + 22.86 = 175.26 cm.

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