Converting from NZMG to NZTM2000
The conversion of coordinates from New Zealand Map Grid (NZMG) to New Zealand Transverse Mercator 2000 (NZTM2000) is a three-stage process:
- De-project NZMG coordinates to NZGD1949 geographic
- Convert NZGD1949 geographic coordinates to NZGD2000
- Project NZGD2000 geographic coordinates onto NZTM2000
A single set of equations to directly transform coordinates between projections is not available.
This conversion process is automated on the online conversion utility and in downloadable software.
Find out more...
For geodetic system
- Geodesy in New Zealand
- About trig stations & geodetic marks
- Understanding datums & projections
- Using maps with different projections
- GPS in New Zealand

