EPSG systems

EPSG:31285 MGI / Austria M31

Projected system (Transverse Mercator) in use: Austria - 11°50'E to 14°50'E. The full definition below, and conversion in one click.

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System record
Code	EPSG:31285
Name	MGI / Austria M31
Type	Projected system — Transverse Mercator
Area of use	Austria - 11°50'E to 14°50'E Austria between 11°50'E and 14°50'E of Greenwich (29°30'E and 32°30'E of Ferro).
Bounds	W 11,83° · S 46,40° · E 14,84° · N 48,79°
Countries	Austria
Datum	Militar-Geographische Institut
Ellipsoid	Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128
Base geographic system	EPSG:4312 — MGI
Unit	metre (X north, Y east)
Transformation to WGS 84	MGI to WGS 84 (3) (EPSG:1618) — accuracy 1.5 m
Scope	Engineering survey, topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	13.333333333333334	degree
Scale factor at natural origin	1	unity
False easting	450000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=13.3333333333333 +k=1 +x_0=450000 +y_0=0 +ellps=bessel +units=m +towgs84=577.326,90.129,463.919,5.137,1.474,5.297,2.4232 +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:31285.

WKT (ESRI format, the .prj content)

PROJCS["MGI_M31",GEOGCS["GCS_MGI",DATUM["D_MGI",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",450000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",13.3333333333333],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Austria

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 — Austria