Definition: Approximately 1.15 statute miles.
The average length of one minute of one degree along a great circle of the earth. One degree is usually defined as 69 statute (land) miles in length so 1/60 of that is 1.15 statute miles. Officially, one nautical mile now equals exactly 1852 meters, 1.15077945 statute miles, or 6076.11549 feet. For more, see the comprehensive Nautical Mile article.
Also Known As: nm, NM
Examples:
The Exclusive Economic Zone of countries over their adjacent ocean is 200 nautical miles.
