Miles to Nautical Miles Converter
How to convert miles to nautical miles
nautical miles = miles ÷ 1.15077945
To convert miles to nautical miles, divide the number of miles by 1.15077945.
1 mi = 0.868976242 nmi
Examples
- A marathon, rounded to the nearest tenth of a mile: 26.2 mi ÷ 1.15077945 = 22.7671775 nmi
- 1 mi ÷ 1.15077945 = 0.868976242 nmi
Good to know
A nautical mile is about 1.15 statute miles, so a speed in knots is about 15% higher when expressed in miles per hour.
This is the international nautical mile of 1,852 m, which is about 15% longer than the statute mile of 1,609.344 m. The obsolete UK Admiralty nautical mile was 6,080 ft (1,853.184 m).
Miles to nautical miles conversion table
| Miles (mi) | Nautical miles (nmi) |
|---|---|
| 0.25 mi | 0.21724406 nmi |
| 0.5 mi | 0.434488121 nmi |
| 1 mi | 0.868976242 nmi |
| 2 mi | 1.73795248 nmi |
| 3 mi | 2.60692873 nmi |
| 4 mi | 3.47590497 nmi |
| 5 mi | 4.34488121 nmi |
| 10 mi | 8.68976242 nmi |
| 13.1 mi | 11.3835888 nmi |
| 20 mi | 17.3795248 nmi |
| 26.2 mi | 22.7671775 nmi |
| 50 mi | 43.4488121 nmi |
| 100 mi | 86.8976242 nmi |
| 250 mi | 217.24406 nmi |
| 500 mi | 434.488121 nmi |
| 1,000 mi | 868.976242 nmi |
Unit definitions
- Mile (mi)
- The international (statute) mile is 5,280 feet, exactly 1,609.344 meters. It is used for road distances in the United States and the United Kingdom.
- Nautical mile (nmi)
- The international nautical mile is exactly 1,852 meters, roughly one minute of arc of latitude. It is the standard distance unit in marine and air navigation.