EPSG systems

EPSG:3135 ETRS89 / ETRS-GK28FIN

Projected system (Transverse Mercator) in use: Finland - 27.5°E to 28.5°E onshore. The full definition below, and conversion in one click.

Convert coordinates Open in Carte Download the .prj

System record
Code	EPSG:3135
Name	ETRS89 / ETRS-GK28FIN
Type	Projected system — Transverse Mercator
Area of use	Finland - 27.5°E to 28.5°E onshore Finland - onshore between 27°30'E and 28°30'E.
Bounds	W 27,50° · S 60,42° · E 28,50° · N 70,09°
Countries	Finland
Datum	European Terrestrial Reference System 1989
Ellipsoid	GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system	EPSG:4258 — ETRS89
Unit	metre (N north, E east)
Transformation to WGS 84	ETRS89 to WGS 84 (1) (EPSG:1149) — accuracy 1 m
Scope	Cadastre, engineering survey, topographic mapping (large scale).

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	28	degree
Scale factor at natural origin	1	unity
False easting	500000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=28 +k=1 +x_0=500000 +y_0=0 +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:3135.

WKT (ESRI format, the .prj content)

PROJCS["ETRS_1989_ETRS-GK28FIN",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",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",0.0],PARAMETER["Central_Meridian",28.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Finland

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 — Finland