EPSG:2391 KKJ / Finland zone 1
Projected system (Transverse Mercator) in use: Finland - 19.5°E to 22.5°E onshore. The full definition below, and conversion in one click.
| Code | EPSG:2391 |
|---|---|
| Name | KKJ / Finland zone 1 |
| Type | Projected system — Transverse Mercator |
| Area of use |
Finland - 19.5°E to 22.5°E onshore Finland - onshore between 19°30'E and 22°30'E. |
| Bounds | W 19,50° · S 59,76° · E 22,50° · N 69,33° |
| Countries | Finland |
| Datum | Kartastokoordinaattijarjestelma (1966) |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Base geographic system | EPSG:4123 — KKJ |
| Unit | metre (X north, Y east) |
| Transformation to WGS 84 | KKJ to WGS 84 (2) (EPSG:10099) — accuracy 1 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 21 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 1500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +units=m +towgs84=-96.062,-82.428,-121.753,4.801,0.345,-1.376,1.496 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:2391.
WKT (ESRI format, the .prj content)
PROJCS["Finland_Zone_1",GEOGCS["GCS_KKJ",DATUM["D_KKJ",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",1500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",21.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Finland
- EPSG:2392KKJ / Finland zone 2
- EPSG:2393KKJ / Finland Uniform Coordinate System
- EPSG:2394KKJ / Finland zone 4
- EPSG:3067ETRS89 / TM35FIN(E,N)
- EPSG:3126ETRS89 / ETRS-GK19FIN
- EPSG:3127ETRS89 / ETRS-GK20FIN
- EPSG:3128ETRS89 / ETRS-GK21FIN
- EPSG:3129ETRS89 / ETRS-GK22FIN
- EPSG:3130ETRS89 / ETRS-GK23FIN
- EPSG:3131ETRS89 / ETRS-GK24FIN
- EPSG:3132ETRS89 / ETRS-GK25FIN
- EPSG:3133ETRS89 / ETRS-GK26FIN
- EPSG:3134ETRS89 / ETRS-GK27FIN
- EPSG:3135ETRS89 / ETRS-GK28FIN
- EPSG:3136ETRS89 / ETRS-GK29FIN
- EPSG:3137ETRS89 / ETRS-GK30FIN
- EPSG:3138ETRS89 / ETRS-GK31FIN
- EPSG:3386KKJ / Finland zone 0
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.