Length Converter

Convert between meters, feet, miles, and more.

Edit any field

Millimeters

Centimeters

Meters

Kilometers

Inches

Feet

Yards

Miles

About

Type a value in any unit and the others update live. Supports millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Plus light-years and astronomical units, for fun.

How to use

Type a value in any unit.
Read the equivalents.

FAQ

How precise is it?+

Conversions use the exact international definitions (1 inch = 25.4 mm, etc.). Display rounding is to 6 significant figures.