Unit Converters
Length Converter
Convert between mm, cm, m, km, inches, feet, and miles.
FreeNo sign-upWorks in your browser
Millimeter (mm)
1
Centimeter (cm)
0.1
Meter (m)
0.001
Kilometer (km)
0.000001
Inch (in)
0.03937
Foot (ft)
0.003281
Yard (yd)
0.001094
Mile (mi)
0.000001
About the Length Converter
Convert length and distance units free and instantly — including the most-searched conversions like cm to inches, inches to cm, feet to meters, meters to feet, miles to km, and km to miles. Enter a value, pick a unit, and every other unit updates at once. No sign-up and nothing to install — just fast, accurate length conversion in your browser.
How to use the Length Converter
- 1Enter a value.
- 2Pick the unit you're converting from.
- 3Read it in every other unit and copy.
Frequently asked questions
How many cm in an inch?
1 inch = 2.54 cm.
How many km in a mile?
1 mile ≈ 1.609 km.
How many feet are in a meter?
1 meter ≈ 3.281 feet, so a quick estimate is meters × 3.3. Exactly: 1 ft = 0.3048 m.