EPSG systems

EPSG:3850 SWEREF99 / RT90 5 gon O emulation

Projected system (Transverse Mercator) in use: Sweden - 5 gon E. The full definition below, and conversion in one click.

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System record
Code	EPSG:3850
Name	SWEREF99 / RT90 5 gon O emulation
Type	Projected system — Transverse Mercator
Area of use	Sweden - 5 gon E Sweden - east of approximately 21°26'E. See information source for map.
Bounds	W 21,34° · S 65,24° · E 24,17° · N 68,58°
Countries	Sweden
Datum	SWEREF99
Ellipsoid	GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system	EPSG:4619 — SWEREF99
Unit	metre (X north, Y east)
Transformation to WGS 84	SWEREF99 to WGS 84 (1) (EPSG:1879) — accuracy 1 m
Scope	User-defined CRS in GPS receiver.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	22.556333333333335	degree
Scale factor at natural origin	1.0000049	unity
False easting	1500121.846	metre
False northing	-672.557	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=22.5563333333333 +k=1.0000049 +x_0=1500121.846 +y_0=-672.557 +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:3850.

WKT (ESRI format, the .prj content)

PROJCS["SWEREF99_RT90_5_gon_O_emulation",GEOGCS["GCS_SWEREF99",DATUM["D_SWEREF99",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",1500121.846],PARAMETER["False_Northing",-672.557],PARAMETER["Central_Meridian",22.5563333333333],PARAMETER["Scale_Factor",1.0000049],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Sweden

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 — Sweden