EPSG:2193 — NZGD2000 / New Zealand Transverse Mercator 2000

Projected coordinate system · coordinates in metres · New Zealand - North Island, South Island, Stewart Island - onshore.

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EPSG:2193NZGD2000 / New Zealand Transverse Mercator 2000

Coordinates in EPSG:4326 — one pair per line

Paste as many as you like: X,Y or X Y or X;Y (optional Z). Columns copied from Excel or a CSV work as-is.

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🔒 Runs entirely in your browser with GDAL WebAssembly — the same PROJ engine used by QGIS, PostGIS, and ArcGIS. Nothing is uploaded. Output units: metre.

Worked example — the centre of this system's area of use: 172.5, -40.715 (EPSG:4326 lon, lat) = 1,557,768.54, 5,492,759.66 (EPSG:2193).

EPSG:2193 is NZGD2000 / New Zealand Transverse Mercator (NZTM2000) — the standard projected coordinate system for all New Zealand mapping. LINZ topographic maps, national datasets, and council GIS data all use NZTM, with coordinates in metres.

It replaced the old NZ Map Grid (NZMG, EPSG:27200) in 2001. NZTM eastings run roughly 1,000,000–2,100,000 and northings 4,700,000–6,200,000 — if your New Zealand data has 7-digit values in those ranges, it is NZTM.

EPSG:2193 details

TypeProjected CRS

DatumNew Zealand Geodetic Datum 2000

Unitsmetre

AxesNorthing (north) · Easting (east)

Projection methodTransverse Mercator

ScopeEngineering survey, topographic mapping.

Base CRSEPSG:4167

Area of use

New Zealand - North Island, South Island, Stewart Island - onshore.

WGS84 bounds: 166.37° to 178.63° longitude, -47.33° to -34.1° latitude.

Well-known text (WKT2)

Show WKT2 definition for EPSG:2193

PROJCRS["NZGD2000 / New Zealand Transverse Mercator 2000",BASEGEOGCRS["NZGD2000",DATUM["New Zealand Geodetic Datum 2000",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4167]],CONVERSION["New Zealand Transverse Mercator 2000",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",173,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9996,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",1600000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",10000000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["northing (N)",north,ORDER[1],LENGTHUNIT["metre",1]],AXIS["easting (E)",east,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["New Zealand - North Island, South Island, Stewart Island - onshore."],BBOX[-47.33,166.37,-34.1,178.63]],ID["EPSG",2193]]

Frequently asked questions

How do I convert lat/long to NZTM?

Set the converter on this page from EPSG:4326 to EPSG:2193 and paste longitude, latitude. Auckland is roughly E 1,757,000, N 5,920,000. NZGD2000 is aligned with WGS 84 for practical purposes, so no significant datum shift applies.

What is the difference between NZTM and NZMG?

NZMG (EPSG:27200) was the pre-2001 grid on the NZGD1949 datum, with a bespoke conformal projection. NZTM (EPSG:2193) uses a standard Transverse Mercator on NZGD2000. Converting NZMG data requires a datum shift as well as a projection change — expect coordinate differences of around 200 m.