New Zealand Coordinate Conversions - common conversions
This list provides some select commonly used coordinate conversions. Use the convert link to convert coordinates, or the customise link to change options such as order of coordinates (easting/northing vs northing/easting).
- Convert a Topo50 map reference such as BZ17 013 962 to longitude and latitude in degrees Convert Customise
- Convert an NZTM (New Zealand Transverse Mercator) easting and northing to NZGD2000 latitude and longitude in degrees. Convert Customise
- Convert an NZGD2000 latitude and longitude in degrees to NZTM (New Zealand Transverse Mercator) easting and northing. Convert Customise
WGS 84
Conversions to and from WGS84 are commonly requested. However be aware that data respresented as WGS84 is often actually in terms of NZGD2000. In practice there is no way to determine accurate WGS84 coordinates in New Zealand. However WGS84 is aligned with the International Terrestrial Reference Frame (ITRF) which is directly accessible within New Zealand. For more information on these issues see the LINZ website.
Also note that these conversions depend on the date of the data. The conversions below use the current date. To use a different date select the Customise link.
- Convert a WGS84 longitude and latitude in degrees to New Zealand Transverse Mercator projection (NZTM) easting and northing. Convert Customise
- Convert New Zealand Transverse Mercator Projection easting and northing to WGS84 longitude and latitude in degrees. Convert Customise
- Convert a WGS84 longitude and latitude in degrees to New Zealand Geodetic Datum 2000 longitude and latitude. Convert Customise
- Convert New Zealand Geodetic Datum 2000 longitude and latitude to WGS84 longitude and latitude in degrees. Convert Customise
Historic coordinate systems
Before the adoption of New Zealand Geodetic Datum 2000 the national datum was New Zealand Geodetic datum 1949, and the mapping projection was New Zealand Map Grid (NZMG). The following conversion can be used to convert these to the current equivalents.
- Convert New Zealand Map Grid easting and northing to New Zealand Transverse Mercator Convert Customise
- Convert NZGD1949 longitude and latitude to NZGD2000 Convert Customise
Use the button below to return to setting up custom conversions.
