WGS84 to GDA2020 Converter
About WGS84 Coordinate System
WGS84 (World Geodetic System 1984) is the global standard geodetic reference system used by GPS. It defines an Earth-centered, Earth-fixed coordinate system and geodetic datum.
Developed by the U.S. Department of Defense in 1984, WGS84 has undergone several refinements (WGS84(G730), WGS84(G873), WGS84(G1150), WGS84(G1762)) to improve accuracy through GPS satellite observations.
WGS84 is the default coordinate system for GPS receivers worldwide. It is used in aviation, maritime navigation, Google Maps, OpenStreetMap, GIS applications, and scientific research.
WGS84 is the native coordinate system of the Global Positioning System (GPS), ensuring direct compatibility with all GPS receivers and satellite navigation systems worldwide.
As the most widely adopted geodetic datum, WGS84 provides a consistent global reference frame for mapping, surveying, and geospatial data exchange across international boundaries.
With continuous refinements, WGS84 achieves centimeter-level accuracy globally, making it suitable for high-precision applications like surveying, drone navigation, and scientific research.
About GDA2020 Coordinate System
GDA2020 (Geocentric Datum of Australia 2020) is the current official geodetic datum for Australia, aligned with ITRF2014 at epoch 2020.0. It uses the GRS80 ellipsoid and provides sub-meter accuracy across the Australian continent.
GDA2020 was released by Geoscience Australia in 2017, replacing GDA94. It reflects the accumulated tectonic movement of the Australian plate (~1.5m since 1994) and aligns Australia's spatial data with modern GNSS positioning.
GDA2020 is the mandated coordinate system for all Australian government spatial data, surveying, and mapping. All states and territories are transitioning from GDA94 to GDA2020.
GDA2020 is the official geodetic datum for Australia, replacing GDA94 and aligning with modern GNSS measurements.
GDA2020 accounts for the ~1.5m shift caused by the north-eastward movement of the Australian tectonic plate since 1994.
GDA2020 is aligned with the International Terrestrial Reference Frame 2014 at epoch 2020.0, ensuring compatibility with modern GPS/GNSS positioning.
WGS84 to GDA2020 Conversion Guide
// WGS84 → GDA2020 (effectively identical)
// Both systems use essentially the same reference ellipsoid
// No transformation is needed for most practical applications
// At sub-meter accuracy level:
// GDA2020 uses the same GRS80 ellipsoid as WGS84
// Difference typically < 1 meter
WGS84 and GDA2020 are essentially identical for most practical applications. Both use the GRS80 ellipsoid (a=6378137m) with a negligible flattening difference. The coordinate difference is typically less than 1 meter.
- Enter your WGS84 coordinates in the input field (latitude, longitude, one pair per line)
- Click the Convert button to transform coordinates from WGS84 to GDA2020
- Review the converted GDA2020 coordinates in the output field
- Copy the results or save them as an XLSX file for further use
- No transformation is needed - WGS84 and GDA2020 are practically equivalent for most applications
- For batch conversions, enter one coordinate pair per line
- Verify a sample of converted coordinates on your target platform
- All conversions are performed client-side for complete data privacy