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Length of sea mile

The sea mile is the distance of one minute of arc of latitude at a given (current) latitude and along the current meridian. Because the Earth is not a true sphere, one minute of latitude arc on pole differs from one minute latitude arc near the equator. This calculator evaluates length of sea mile at a given latitude.
Anton2009-09-25 19:02:24
Length of sea mileCreative Commons Attribution/Share-Alike License 3.0 (Unported)