Miles to Nautical miles converter

To convert miles to nautical miles, enter the value in the first field. The result in nautical miles is calculated automatically using the exact conversion factor.

1 mi ≈ 0.868976241901 nmi
1 nmi ≈ 1.15077944802 mi

Formula: nmi ≈ mi × 0.868976241901
mi ≈ nmi × 1.15077944802

Definitions: 1 mi = 5280 ft; 1 nmi = 1852 m

The mile (mi) is 5,280 feet, or exactly 1,609.344 meters. It is the road-distance unit in the United States and the United Kingdom, where speed limits are posted in miles per hour.

The nautical mile is exactly 1,852 meters, roughly one minute of latitude. It is the standard distance unit in sea and air navigation, and speed in the same context is measured in knots, which are nautical miles per hour.

See the conversion table with commonly used values, handy for quick reference or study.