Miles (mi) to Nautical miles (nmi) Conversion
Miles
The mile is a unit of length with roots in the Roman mille passuum ("thousand paces"), approximately 1,480 metres. The modern international mile, standardised in 1959, is defined as exactly 1,609.344 metres. It remains the primary unit of road distance in the United States, United Kingdom, and a small number of other countries, and is used in aviation for visibility reporting. The statute mile should be distinguished from the nautical mile (1,852 m), used in maritime and aerial navigation worldwide.
Nautical miles
The nautical mile is a unit of length equal to exactly 1,852 metres, adopted internationally in 1929. Unlike most length units, it is geometrically derived: it corresponds to one arcminute (1/60 of a degree) of latitude, making it naturally suited to navigation on the spherical surface of the globe. Speed in nautical miles per hour is expressed in knots.
| Miles (mi) | Nautical miles (nmi) |
|---|---|
| 0.1 mi | 0.0869 nmi |
| 1 mi | 0.869 nmi |
| 2 mi | 1.738 nmi |
| 3 mi | 2.6069 nmi |
| 5 mi | 4.3449 nmi |
| 10 mi | 8.6898 nmi |
| 20 mi | 17.3795 nmi |
| 30 mi | 26.0693 nmi |
| 50 mi | 43.4488 nmi |
| 100 mi | 86.8976 nmi |
| 1000 mi | 868.9762 nmi |
Frequently Asked Questions (FAQ)
How many nautical miles are in 1 miles?
1 miles (mi) is exactly 0.868976 nautical miles (nmi).
How do I convert miles to nautical miles?
Multiply the value in miles by 0.868976 to get the result in nautical miles. Or use the converter above — type any number and see the result instantly.