Please enter one length to calculate the rest:
Note: there is variance in the spelling of Meter (UK) and Metre (US).
Meters are the SI unit for length, 1 meter is defined by the length that light travels in 1/299792458 seconds.
1 millimeter is 1/1000th of a meter.
1 centimeter is 1/100th of a meter.
1 kilometer is 1000 meters.
1 inch is 25.4 millimeters.
1 foot is 12 inches.
1 yard is 3 feet.
1 mile is 1610 meters.
1 nautical mile is 1852 meters.
Some other interesting length units are defined as follows:
1 fathom is 1.8288 meters.
1 furlong is 201.168 meters.
1 parsec is 3.086e+16 meters.
1 astronomical unit is 1.496e+11
1 span is the maximum distance between thumb and little finger, this varies person to person.
1 nanometer is 1e-9 meters
1 picometer is 1e-12
1 micrometer is 1e-6 meters