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Coordinate Reference Systems used in Australia

Australia's current geodetic datum is GDA2020 (EPSG:7844), which replaced GDA94 (EPSG:4283) in 2020 to better track the Australian plate's ~7 cm/year northwards drift. Map Grid of Australia 2020 (MGA2020, zones 49-56, EPSG:7849-7856) is the projected CRS used for most state mapping. Pre-1990s records use AGD66 (EPSG:4202) or AGD84 (EPSG:4203). Geoscience Australia and state agencies are migrating all data to GDA2020 by 2030.

Most commonly used in Australia

Geographic (2D) (6)

Projected (94)

Geographic (3D) (4)

Geocentric (4)

Compound (3)