EPSG:27291 NZGD49 / North Island Grid
Projected system (Transverse Mercator) in use: New Zealand - North Island. The full definition below, and conversion in one click.
| Code | EPSG:27291 |
|---|---|
| Name | NZGD49 / North Island Grid |
| Type | Projected system — Transverse Mercator |
| Area of use | New Zealand - North Island |
| Bounds | W 171,99° · S -41,67° · E 178,63° · N -34,10° |
| Countries | New Zealand |
| Datum | New Zealand Geodetic Datum 1949 |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Base geographic system | EPSG:4272 — NZGD49 |
| Unit | British yard (Sears 1922) (E east, N north) |
| Transformation to WGS 84 | NZGD49 to WGS 84 (2) (EPSG:1564) — accuracy 4 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | -39 | degree |
| Longitude of natural origin | 175.5 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 300000 | British yard (Sears 1922) |
| False northing | 400000 | British yard (Sears 1922) |
proj4 definition
+proj=tmerc +lat_0=-39 +lon_0=175.5 +k=1 +x_0=274319.524384809 +y_0=365759.365846411 +ellps=intl +to_meter=0.914398414616029 +towgs84=59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:27291.
WKT (ESRI format, the .prj content)
PROJCS["New_Zealand_North_Island",GEOGCS["GCS_New_Zealand_1949",DATUM["D_New_Zealand_1949",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",300000.0],PARAMETER["False_Northing",400000.0],PARAMETER["Central_Meridian",175.5],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",-39.0],UNIT["British yard (Sears 1922)",0.914398414616029]]Other systems — New Zealand
- EPSG:27219NZGD49 / Amuri Circuit
- EPSG:27220NZGD49 / Marlborough Circuit
- EPSG:27221NZGD49 / Hokitika Circuit
- EPSG:27222NZGD49 / Okarito Circuit
- EPSG:27223NZGD49 / Jacksons Bay Circuit
- EPSG:27224NZGD49 / Mount Pleasant Circuit
- EPSG:27225NZGD49 / Gawler Circuit
- EPSG:27226NZGD49 / Timaru Circuit
- EPSG:27227NZGD49 / Lindis Peak Circuit
- EPSG:27228NZGD49 / Mount Nicholas Circuit
- EPSG:27229NZGD49 / Mount York Circuit
- EPSG:27230NZGD49 / Observation Point Circuit
- EPSG:27231NZGD49 / North Taieri Circuit
- EPSG:27232NZGD49 / Bluff Circuit
- EPSG:27258NZGD49 / UTM zone 58S
- EPSG:27259NZGD49 / UTM zone 59S
- EPSG:27260NZGD49 / UTM zone 60S
- EPSG:27292NZGD49 / South Island Grid
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.