If you treat the Earth as a sphere with a circumference of 25000 miles then one degree of latitude is 25000360 6944 miles. Calculate distance bearing and more between two LatitudeLongitude pointsshows lots of equations in math and implemented in JavaScript. Chris Venesss page also contains an Excel formula of the Haversine equation actually using the spherical lawof cosines for distances between points in kilometres.
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Calculate distance bearing and more between two LatitudeLongitude pointsshows lots of equations in math and implemented in JavaScript. Latitudelongitude of those points. This seems pretty straight forward yet I cant find a function that will do it easily. A minute is thus 694460 1157 miles and a second is 11560 00193 miles or about 101 feet.