Coordinate Reference Systems
Transform Coordinates
Remarks
Derived via ITRF96 @ 1998.121. Published 2002-03-01. Parameter values from Hong Kong 1980 to Hong Kong Geodetic CS (1) (code 9913) assuming Hong Kong Geodetic CS and WGS 84 are equivalent within the accuracy of the CT.
Frequently Asked Questions
How do I convert Hong Kong 1980 to WGS 84 coordinates?
Use the coordinate transformation tool above to convert Hong Kong 1980 (EPSG:4611) to WGS 84 (EPSG:4326). Enter your source coordinates and click Transform. This uses the Coordinate Frame rotation (geog2D domain) method with 1m accuracy.
How do I transform Hong Kong 1980 to WGS 84 using Proj4js?
Use proj4.defs to define both EPSG:4611 and EPSG:4326, then call proj4(source, target, [x, y]) to convert coordinates programmatically.
What is the accuracy of the Hong Kong 1980 to WGS 84 transformation?
This transformation (EPSG:1825) has an accuracy of 1m using the Coordinate Frame rotation (geog2D domain) method. Area of use: Hong Kong.