Length Converter.
Convert millimeter, centimeter, meter, kilometer, inch, foot, yard, mile, and nautical mile lengths.
Units Defined in Length
Below is the complete registry of units supported within the conversion tool.
Millimeter
mm, millimeter, millimetersOne-thousandth of a meter. Common metric unit for small lengths.
Centimeter
cm, centimeter, centimetersOne-hundredth of a meter. Used worldwide for general height and object measurements.
Meter
m, meter, metersThe fundamental unit of length in the International System of Units (SI).
Kilometer
km, kilometer, kilometersOne thousand meters. The standard metric unit for geographical distances.
Inch
in, inch, inches, "Imperial and US customary unit equal to exactly 2.54 centimeters.
Foot
ft, foot, feet, 'Imperial and US customary unit equal to 12 inches or 0.3048 meters.
Yard
yd, yard, yardsImperial and US customary unit equal to 3 feet or 36 inches.
Mile
mi, mile, milesStandard imperial and US unit equal to 5,280 feet or 1,609.344 meters.
Nautical Mile
nmi, nautical mile, nautical milesA unit of length used in navigation, defined as exactly 1,852 meters (approx. one minute of latitude).
Supported Conversions for Length
Quick lookup links for popular conversions in this directory.