Lat/long (Geodetic alias)

Passes geodetic coordinates through unchanged.

Aliases latlon, latlong, lonlat, longlat
Domain 2D
Input type Geodetic coordinates
Output type Geodetic coordinates


Can not be used with the proj application.


No parameters will affect the output of the operation if used on it’s own. However, the parameters below can be used in a declarative manner when used with cs2cs or in a transformation pipeline .


See proj -le for a list of available ellipsoids.

Defaults to “GRS80”.


Declare the datum used with the coordinates. See cs2cs -l for a list of available datums.


A list of three or seven Helmert parameters that maps the input coordinates to the WGS84 datum.