EPSG systems

EPSG:5682 DB_REF / 3-degree Gauss-Kruger zone 2 (E-N)

Projected system (Transverse Mercator) in use: Germany - West Germany - west of 7.5°E. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:5682
NameDB_REF / 3-degree Gauss-Kruger zone 2 (E-N)
TypeProjected system — Transverse Mercator
Area of use Germany - West Germany - west of 7.5°E
Germany - former West Germany onshore west of 7°30'E - states of Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Saarland.
Bounds W 5,86° · S 49,11° · E 7,51° · N 53,81°
Countries Germany
DatumDeutsche Bahn Reference System
Ellipsoid Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128
Base geographic system EPSG:5681 — DB_REF
Unit metre (E east, N north)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeEngineering survey and topographic mapping for railway applications.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin6degree
Scale factor at natural origin1unity
False easting2500000metre
False northing0metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=6 +k=1 +x_0=2500000 +y_0=0 +ellps=bessel +units=m +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:5682.

WKT (ESRI format, the .prj content)

PROJCS["DB_REF_3-Degree_GK_Zone_2_(E-N)",GEOGCS["GCS_DB_REF",DATUM["D_Deutsche_Bahn_Reference_System",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",2500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",6.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Germany

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