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A unit of length used in marine navigation that is equal to a minute of arc of a great circle on a sphere. One international nautical mile is equivalent to 1,852 meters or 1.151 statue miles. Please not that this is different to a UK Nautical mile.
Nautical miles measure distance. 1 nautical mile is the angular distance of 1 minute of arc on the earth's surface. As these differ slightly (6108' at pole c.f. 6046' at equator) 6080 was adopted (this being it's approximate value in the English Channel). The International nautical mile is 1852 metres, so is very slightly different from the UK nautical mile.
| US Nautical Miles | UK Nautical Miles |
|---|---|
| 0US nmi | 0.00UK nmi |
| 1US nmi | 1.00UK nmi |
| 2US nmi | 2.00UK nmi |
| 3US nmi | 3.00UK nmi |
| 4US nmi | 4.00UK nmi |
| 5US nmi | 5.00UK nmi |
| 6US nmi | 6.00UK nmi |
| 7US nmi | 7.00UK nmi |
| 8US nmi | 7.99UK nmi |
| 9US nmi | 8.99UK nmi |
| 10US nmi | 9.99UK nmi |
| 11US nmi | 10.99UK nmi |
| 12US nmi | 11.99UK nmi |
| 13US nmi | 12.99UK nmi |
| 14US nmi | 13.99UK nmi |
| 15US nmi | 14.99UK nmi |
| 16US nmi | 15.99UK nmi |
| 17US nmi | 16.99UK nmi |
| 18US nmi | 17.99UK nmi |
| 19US nmi | 18.99UK nmi |
| US Nautical Miles | UK Nautical Miles |
|---|---|
| 20US nmi | 19.99UK nmi |
| 21US nmi | 20.99UK nmi |
| 22US nmi | 21.99UK nmi |
| 23US nmi | 22.99UK nmi |
| 24US nmi | 23.98UK nmi |
| 25US nmi | 24.98UK nmi |
| 26US nmi | 25.98UK nmi |
| 27US nmi | 26.98UK nmi |
| 28US nmi | 27.98UK nmi |
| 29US nmi | 28.98UK nmi |
| 30US nmi | 29.98UK nmi |
| 31US nmi | 30.98UK nmi |
| 32US nmi | 31.98UK nmi |
| 33US nmi | 32.98UK nmi |
| 34US nmi | 33.98UK nmi |
| 35US nmi | 34.98UK nmi |
| 36US nmi | 35.98UK nmi |
| 37US nmi | 36.98UK nmi |
| 38US nmi | 37.98UK nmi |
| 39US nmi | 38.98UK nmi |
| US Nautical Miles | UK Nautical Miles |
|---|---|
| 40US nmi | 39.97UK nmi |
| 41US nmi | 40.97UK nmi |
| 42US nmi | 41.97UK nmi |
| 43US nmi | 42.97UK nmi |
| 44US nmi | 43.97UK nmi |
| 45US nmi | 44.97UK nmi |
| 46US nmi | 45.97UK nmi |
| 47US nmi | 46.97UK nmi |
| 48US nmi | 47.97UK nmi |
| 49US nmi | 48.97UK nmi |
| 50US nmi | 49.97UK nmi |
| 51US nmi | 50.97UK nmi |
| 52US nmi | 51.97UK nmi |
| 53US nmi | 52.97UK nmi |
| 54US nmi | 53.97UK nmi |
| 55US nmi | 54.96UK nmi |
| 56US nmi | 55.96UK nmi |
| 57US nmi | 56.96UK nmi |
| 58US nmi | 57.96UK nmi |
| 59US nmi | 58.96UK nmi |