EPSG systems

EPSG:7850 GDA2020 / MGA zone 50

Projected system (Transverse Mercator) in use: Australia - 114°E to 120°E. The full definition below, and conversion in one click.

Convert coordinates Open in Carte Download the .prj

System record
Code	EPSG:7850
Name	GDA2020 / MGA zone 50
Type	Projected system — Transverse Mercator
Area of use	Australia - 114°E to 120°E Australia - onshore and offshore between 114°E and 120°E.
Bounds	W 114,00° · S -38,53° · E 120,01° · N -12,06°
Countries	Australia
Datum	Geocentric Datum of Australia 2020
Ellipsoid	GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system	EPSG:7844 — GDA2020
Unit	metre (E east, N north)
Transformation to WGS 84	GDA2020 to WGS 84 (2) (EPSG:8450) — accuracy 3 m
Scope	Engineering survey, topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	117	degree
Scale factor at natural origin	0.9996	unity
False easting	500000	metre
False northing	10000000	metre

proj4 definition

+proj=utm +zone=50 +south +ellps=GRS80 +units=m +towgs84=0,0,0 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:7850.

WKT (ESRI format, the .prj content)

PROJCS["GDA2020_MGA_Zone_50",GEOGCS["GCS_GDA2020",DATUM["GDA2020",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",117.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Australia

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.

Projection parameters

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — Australia