GDA2020 to WGS84 Converter (Australia)
Convert Australian Geodetic Datum 2020 (GDA2020 / EPSG:7844) and GDA94 (EPSG:4283) coordinates to global WGS84 (EPSG:4326).
Why Australia Re-Defined Its Datum (GDA94 vs GDA2020)
Australia sits on one of the fastest-moving tectonic plates on Earth, drifting northeast at approximately 7 centimeters per year. Between 1994 and 2020, the physical landmass shifted by approximately 1.8 meters relative to the global WGS84 coordinate grid used by satellites.
| Datum | Reference Epoch | EPSG Code | Offset from WGS84 (Current) |
|---|---|---|---|
| GDA94 | 1 January 1994 | EPSG:4283 | ~1.8 meters southwest |
| GDA2020 | 1 January 2020 | EPSG:7844 | < 0.1 meters (aligned at 2020) |