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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.
A nautical league was 6,080 yards - or three nautical miles (each league being 6,080 feet). Note that there also US Leagues, UK Leagues and UK Nautical Leagues which all differ.
| UK Nautical Miles | Nautical Leagues |
|---|---|
| 0UK nmi | 0.00nl |
| 1UK nmi | 0.33nl |
| 2UK nmi | 0.67nl |
| 3UK nmi | 1.00nl |
| 4UK nmi | 1.33nl |
| 5UK nmi | 1.67nl |
| 6UK nmi | 2.00nl |
| 7UK nmi | 2.33nl |
| 8UK nmi | 2.67nl |
| 9UK nmi | 3.00nl |
| 10UK nmi | 3.34nl |
| 11UK nmi | 3.67nl |
| 12UK nmi | 4.00nl |
| 13UK nmi | 4.34nl |
| 14UK nmi | 4.67nl |
| 15UK nmi | 5.00nl |
| 16UK nmi | 5.34nl |
| 17UK nmi | 5.67nl |
| 18UK nmi | 6.00nl |
| 19UK nmi | 6.34nl |
| UK Nautical Miles | Nautical Leagues |
|---|---|
| 20UK nmi | 6.67nl |
| 21UK nmi | 7.00nl |
| 22UK nmi | 7.34nl |
| 23UK nmi | 7.67nl |
| 24UK nmi | 8.01nl |
| 25UK nmi | 8.34nl |
| 26UK nmi | 8.67nl |
| 27UK nmi | 9.01nl |
| 28UK nmi | 9.34nl |
| 29UK nmi | 9.67nl |
| 30UK nmi | 10.01nl |
| 31UK nmi | 10.34nl |
| 32UK nmi | 10.67nl |
| 33UK nmi | 11.01nl |
| 34UK nmi | 11.34nl |
| 35UK nmi | 11.67nl |
| 36UK nmi | 12.01nl |
| 37UK nmi | 12.34nl |
| 38UK nmi | 12.67nl |
| 39UK nmi | 13.01nl |
| UK Nautical Miles | Nautical Leagues |
|---|---|
| 40UK nmi | 13.34nl |
| 41UK nmi | 13.68nl |
| 42UK nmi | 14.01nl |
| 43UK nmi | 14.34nl |
| 44UK nmi | 14.68nl |
| 45UK nmi | 15.01nl |
| 46UK nmi | 15.34nl |
| 47UK nmi | 15.68nl |
| 48UK nmi | 16.01nl |
| 49UK nmi | 16.34nl |
| 50UK nmi | 16.68nl |
| 51UK nmi | 17.01nl |
| 52UK nmi | 17.34nl |
| 53UK nmi | 17.68nl |
| 54UK nmi | 18.01nl |
| 55UK nmi | 18.35nl |
| 56UK nmi | 18.68nl |
| 57UK nmi | 19.01nl |
| 58UK nmi | 19.35nl |
| 59UK nmi | 19.68nl |