Nautical Mile
A unit of distance equal to exactly 1,852 metres, based on one arcminute of latitude.
Definition
A nautical mile (NM or nmi) is a unit of measurement used in maritime and air navigation. It is defined as exactly 1,852 metres. The nautical mile is based on the Earth's circumference: one nautical mile equals one arcminute of latitude along any meridian.
Formula
1 nmi = 1,852 m = 1.15078 miles
Examples
- A transatlantic flight from London to New York is about 3,000 nautical miles.
- The exclusive economic zone of a country extends 200 nautical miles from its coastline.