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Conversion software
The following applications are provided free of charge by the NSW Department of Lands to support implementation of the Geocentric Datum of Australia (GDA).
(Whilst all effort is made to ensure the accuracy and currency of these applications, Lands does not accept responsibility for any actions arising from their use).
MGA Combined Scale Factor
The Combined Scale Factor (CSF) is applied to distances measured on the ground to reduce them to sea level.
Download an spreadsheet (XLS 19 kb) that will calculate the MGA Combined Scale Factor (including the Geoid separation).
View a graph (nomogram) for the MGA Combined Scale Factor.
Coordinate Conversions and 7 Parameter Transformation
Use our online application at http://scims.lands.nsw.gov.au/transform.html to convert coordinates between latitude/longitude and easting/northing in the same datum, and perform a 7 parameter transformation between AGD66 and GDA94 coordinates.
GEOD - Transformation Software
GEOD is a Windows compatible program that will transform individual points or files of point data (csv, ssv, acs27) between various coordinate systems in use across Australia.
View more detailed information or download GEOD.
DatumTran - Transformation Software
DatumTran is a windows compatible program that transforms common GIS data files of grid or geographic coordinates between Australian Geodetic Datums (AGD66 / AGD84) and GDA94.
DatumTran (v1.6) also transforms between GDA94 and ITRF (International Terrestrial Reference Framework).
DatumTran (v1.6) supports many ASCII data file formats and also ESRI binary "shape" files.
