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Online calculation tool for spherical distance between two points on the earth

Originating place

On the equator of the earth, it takes a circle of 40075.04 kilometers around the earth, and @ circle is divided into 360°. And every 1 ° (degrees) has 60, the length of each degree and one second on the equator is calculated as follows:



Each minute has 60 seconds, and each second represents 1855.3m/60=30.92m.

The formula for calculating the distance between any two points is


The longitude and longitude of point A are λA and ΦA, respectively, and the longitude and latitude of point B are λB and ΦB, respectively, and d is the distance.


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