EPSG systems

EPSG:4149 CH1903

Geographic system in latitude and longitude, in use: Europe - Liechtenstein and Switzerland. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4149
NameCH1903
TypeGeographic system
Area of use Europe - Liechtenstein and Switzerland
Liechtenstein; Switzerland.
Bounds W 5,96° · S 45,82° · E 10,49° · N 47,81°
Countries Liechtenstein, Switzerland
DatumCH1903
Ellipsoid Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128
Unit degree (Lat north, Lon east)
Transformation to WGS 84 CH1903 to WGS 84 (2) (EPSG:1766) — accuracy 1.5 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346 +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:4149.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_CH1903",DATUM["D_CH1903",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Liechtenstein

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