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Great Circle distance and midpoint betweeen Latitude/Longitude points

This will compute the great-circle distance between two latitude/longitude points, as well as the middle point. The script uses Haversine formula, which results in in approximations less than 1%.

Enter either:

  • decimal latitudes/longitudes with minus sign for South and West
  • degrees minutes seconds in a format like E 32 14 9 (32°14'9" East longitude).

Point 1Point 2
Middle point
(Courtesy of Google Maps)


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