CGCS2000 to WGS84 Converter
About CGCS2000 Coordinate System
CGCS2000 (China Geodetic Coordinate System 2000) is China's official national geodetic coordinate system, replacing Beijing 1954 and Xian 1980 systems. It is aligned with ITRF97.
CGCS2000 was officially adopted by the State Council of China in 2008 as the national standard.
CGCS2000 is mandatory for all official surveying, mapping, and GIS projects in China. It is used by government agencies, land management, urban planning, and infrastructure development.
CGCS2000 is aligned with the International Terrestrial Reference Frame 1997 (ITRF97) at epoch 2000.0.
CGCS2000 and WGS84 are essentially identical for most practical applications, with differences typically less than 1 meter.
CGCS2000 is supported by a nationwide network of continuously operating reference stations (CORS) across China.
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.
CGCS2000 → WGS84 Conversion Guide
// CGCS2000 → WGS84 (effectively identical)
// Both systems use essentially the same reference ellipsoid
// No transformation is needed for most practical applications
// At sub-meter accuracy level:
// CGCS2000 uses the same GRS80 ellipsoid as WGS84
// Difference typically < 1 meter
{{from}} and {{to}} 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 CGCS2000 coordinates in the input field (latitude, longitude, one pair per line)
- Click the Convert button to transform coordinates from CGCS2000 to WGS84
- Review the converted WGS84 coordinates in the output field
- Copy the results or save them as an XLSX file for further use
- No transformation is needed - CGCS2000 and WGS84 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