nautical mile

By admin_wla | Tue, 4 Feb 2014 - 12:13
A nautical mile is a unit of distance equal to 1,852 meters. The length of the nautical mile is very close to the mean value of the length of 1 minute of latitude, which varies from approximately 1,843 meters at the equator to 1,861.6 meters at the pole. Source: NASA (http://earthobservatory.nasa.gov/Glossary)