This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)


As of Version 7.0, has been superseded by GeoDistance.

gives the distance between points and on Earth using a spherical model of the planet.
  • A point is expressed as a pair of numbers .
  • Each coordinate latitude and longitude can be given in degrees, or as , or .
  • A negative value for a coordinate indicates that the coordinate is South latitude or West longitude.
  • Distances are returned in kilometers.
  • The spherical model is based on an exact formula.
  • The following option can be given:
Radius6371007/1000specify the radius of the sphere
  • With the setting the radius of the spherical model is assumed to be r kilometers.