Nautical mile,
Definition of Nautical mile:
Distance of 6076.11 feet or exactly 1852 meters. Also called International Nautical mile, it replaced the British Nautical mile (6080 feet) and US Nautical mile (6080.20 feet) by a 1920 international agreement. One nautical mile equals 1.15 miles or 1.85 kilometers. Also called air mile.
Meaning of Nautical mile & Nautical mile Definition