Are five nautical miles the same distance as five land miles?
1 land mile is 5280 feet 1 naut mile is 6080 approximately A nautical mile is the distance on the earth’s surface subtended by an angle of 1 minute (1/60th of a degree) of latitude. Because the earth is not a true sphere the distance on the surface will vary between the poles and the equator. And to Martin B, the definition of a knot is a speed of 1 nautical mile per hour.