Nautical Miles (M, NM, or nmi) - Length / Distance Conversions

A nautical mile is a non-SI unit of Length or Distance. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. It is approximately one minute of arc measured along any meridian. The symbol for nautical mile is M or NM or nmi.

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Unit Summary

This table provides a summary of the Length or Distance units within their respective measurement systems.

Unit	Symbol	Measurement System	Description
inches	in or "	US Customary Units/Imperial System	36 inches = 1 yard
feet	ft or '	US Customary Units/Imperial System	1 foot = 12 inches
yards	yd	US Customary Units/Imperial System	1 yard = 3 feet
miles	mi	US Customary Units/Imperial System	1 mile = 1760 yards or 5280 feet
picometers	pm	Metric System	1 m = 1,000,000,000,000 pm
nanometers	nm	Metric System	1 m = 1,000,000,000 nm
micrometers	μm	Metric System	1 m = 1,000,000 μm
millimeters	mm	Metric System	1 m = 1,000 mm
centimeters	cm	Metric System	1 m = 100 cm
decimeters	dm	Metric System	1 m = 10 dm
meters	m	Metric System	base unit
decameters	dam or dkm	Metric System	1 dam = 10 m
hectometers	hm	Metric System	1 hm = 100 m
kilometers	km	Metric System	1 km = 1,000 m
megameters	Mm	Metric System	1 Mm = 1,000,000 m
gigameters	Gm	Metric System	1 Gm = 1,000,000,000 m
nautical miles	M or NM or nmi	Non-SI (International)	1 nmi = 1,852 meters
angstroms	Å	Non-SI (International)	10,000,000,000 Å = 1 m
rods	rod	Non-SI (International)	320 rods = 1 mile

Note: For Length and Distance conversions, US Customary Units and the Imperial System are equivalent.

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Nautical Miles (M, NM, or nmi) - Length / Distance Conversions

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Unit Summary

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