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EPSG:3577 — GDA94 / Australian Albers

GDA94 / Australian Albers — Australia's nationwide equal-area projection, used by ABS and CSIRO for thematic mapping.

Code
EPSG:3577
Type
Projected
Area
Australia - onshore

PROJ definition

+proj=aea +lat_0=0 +lon_0=132 +lat_1=-18 +lat_2=-36 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs

Geographic bounds

W 112.85°   S -43.7°   E 153.69°   N -9.86°

Convert coordinates with EPSG:3577

About EPSG:3577

EPSG:3577 is the Albers Equal Area Conic projection on GDA94 with central meridian 132°E and standard parallels at 18°S and 36°S. It preserves area across the Australian continent, making it the right choice for nationwide thematic, ecological and statistical maps.

Geoscience Australia, ABS, BOM, and CSIRO use Australian Albers for landscape-scale analysis: vegetation cover, fire scars, statistical regions, hydrological catchments. For maps requiring accurate distance/shape rather than area, prefer MGA UTM zones or a conformal Lambert. The GDA2020 equivalent — Australian Albers GDA2020 (EPSG:9473) — is gradually replacing EPSG:3577 in new datasets.

Common use cases

  • ABS Statistical Area boundaries
  • Geoscience Australia continental thematic maps
  • Vegetation, fire, and ecology raster analysis
  • BOM climate raster products at continental scale

Common transformations from EPSG:3577

Frequently asked questions

Should I migrate Australian Albers data to GDA2020?
EPSG:9473 is the GDA2020 equivalent. New datasets should use GDA2020 / Albers, but the existing EPSG:3577 dataset library is enormous and remains in active use.
What is the proj4 string for EPSG:3577?
The proj4 definition for EPSG:3577 is: +proj=aea +lat_0=0 +lon_0=132 +lat_1=-18 +lat_2=-36 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs
Where is EPSG:3577 used?
EPSG:3577 (GDA94 / Australian Albers) is defined for the area: Australia - onshore.