Coordinate transformations to CGVD2013a(2002) height

The EPSG Geodetic Parameter Dataset defines official transformations from 4 coordinate reference systems to CGVD2013a(2002) height (EPSG:20034). Each page lists the published parameters, accuracy and area of use, with a free in-browser converter.

• CGVD2013a(1997) height → CGVD2013a(2002) height±0.05 m
• CGVD28 height → CGVD2013a(2002) height±0.05 m
• CGVD28(HTv2.0) height → CGVD2013a(2002) height±0.02 m
• NAD83(CSRS)v4 → CGVD2013a(2002) height±0.05 m