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EPSG Library · Europe

EPSG:3006 — SWEREF99 TM

Source: EPSG Dataset via PROJ 9.5.1 · Updated

Summary

EPSG:3006 (SWEREF99 TM) is a projected coordinate reference system on the SWEREF99 datum using the Transverse Mercator method, with coordinates in metres. Area of use: Sweden - onshore and offshore.

  • Type: projected
  • Datum: SWEREF99
  • Units: metre
  • Axes: N, E

Definition

EPSG:3006 as published in the EPSG Dataset (PROJ 9.5.1).
PropertyValue
EPSG codeEPSG:3006
NameSWEREF99 TM
TypeProjected CRS
DatumSWEREF99
EllipsoidGRS 1980 (a = 6,378,137.000 m, 1/f = 298.257222)
Prime meridianGreenwich
Projection methodTransverse Mercator
AxesNorthing (N, north, metre); Easting (E, east, metre)
ScopeTopographic mapping (medium and small scale).
Bounding box10.03° to 24.17° longitude, 54.96° to 69.07° latitude

Area of use

Sweden - onshore and offshore.

Projection parameters

Transverse Mercator parameters.
ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin15degree
Scale factor at natural origin0.9996unity
False easting500,000metre
False northing0metre

Example coordinates

A WGS 84 point at longitude 17.1°, latitude 62.015° (inside the area of use) has these coordinates in EPSG:3006:

Computed with PROJ using the EPSG default operation: axis order change (2D) + Inverse of SWEREF99 to WGS 84 (1) + SWEREF99 TM + axis order change (2D).
AxisValueUnit
N609,924.449m
E6,877,630.371m

At this point the projection scale factor is 0.99974802 and the grid convergence is +1.854632°.

Open this conversion in the coordinate converter

Transformations to WGS 84

Candidate operations from the EPSG Dataset, best first as ranked by PROJ.
OperationAccuracyArea of use
axis order change (2D) + SWEREF99 to WGS 84 (1) + axis order change (2D)1 mSweden - onshore and offshore.

Transformations change the datum, so each has an accuracy and an area of use. Choose the most accurate one that covers your data and record its name. See datum transformations.

Definitions and downloads

PROJ string

+proj=utm +zone=33 +ellps=GRS80 +units=m +no_defs +type=crs

A PROJ string cannot carry every EPSG detail (axis order, datum ensemble, transformations). Prefer WKT2 or the EPSG code itself.

Proj4js definition used by the converter

+proj=utm +zone=33 +ellps=GRS80 +units=m +towgs84=0,0,0 +no_defs

Datum shift from SWEREF99 to WGS 84 (1) (EPSG accuracy 1 m), the best single Helmert operation for this area of use. Where PROJ prefers a grid-based or multi-step operation (see the table above), results can differ by up to that operation's accuracy.

WKT2:2019
PROJCRS["SWEREF99 TM", BASEGEOGCRS["SWEREF99", DATUM["SWEREF99", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4619]], CONVERSION["SWEREF99 TM", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",15, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (N)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (E)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Topographic mapping (medium and small scale)."], AREA["Sweden - onshore and offshore."], BBOX[54.96,10.03,69.07,24.17]], ID["EPSG",3006]]

Downloads

FAQ

What is EPSG:3006?

EPSG:3006 (SWEREF99 TM) is a projected coordinate reference system on the SWEREF99 datum using the Transverse Mercator method, with coordinates in metres. Area of use: Sweden - onshore and offshore.

Where can EPSG:3006 be used?

Its area of use is: Sweden - onshore and offshore.

Is EPSG:3006 in metres or degrees?

EPSG:3006 is projected, so coordinates are northing and easting in metres, not degrees.

How do I convert EPSG:3006 to latitude and longitude?

Transform from EPSG:3006 to EPSG:4326 (WGS 84). In GeoCAD Bridge open the coordinate converter with EPSG:3006 preselected, enter easting and northing, and choose WGS 84 as the target.

How accurate is the transformation from EPSG:3006 to WGS 84?

The most accurate EPSG transformation listed here is “axis order change (2D) + SWEREF99 to WGS 84 (1) + axis order change (2D)”, with a stated accuracy of 1 m for Sweden - onshore and offshore.. Always check the area of use before applying it.

Coordinate systems

Articles

Tools

References

  1. IOGP. EPSG Geodetic Parameter Dataset, epsg.org/crs_3006.
  2. PROJ 9.5.1 / pyproj 3.7.2, used to compute every value on this page.

Cite this page

GeoCAD Bridge. “EPSG:3006 — SWEREF99 TM.” GeoCAD Bridge EPSG Library, updated 2026-10-05. https://www.geocadbridge.com/epsg/3006/