How can you calculate the distance between 2 points with the latitude and longitude coordinates?

Question

How can you calculate the distance between 2 points with the latitude and longitude coordinates?

Answer 1

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Answer 2

There are several different methods, depending on how accurate you want to be, the great circle sailing formulas are most accurate as they incorporate the fact that the earth is a sphere.  

The formulas are in a book called Bowditch, written by the young navigator who put together all the formulae for navigating the oceans, determining courses and distances from different lat. and long. coordinates.

Answer 3

Let "d" be the arc distance along a great circle between two points.

Let "F1" be the latitude of the first point.

Let "F2" be the latitude of the second point.

Let "T1" be the longitude of the first point.

Let "T2" be the longitude of the second point.

Let the unit of measurement be the degree.

Thus:

d = arccos((sinF1)*(sinF2) + (cosF1)*(cosF2)*(cos(T1-T2)))

Next:

kilometers = (d / 360)*40,041

or

miles = (d / 360)*24,880

The further away the two points are, and the more accurate the latitude and longitude coordinates are, the more accurate your results will be.