Contact the Geodesy Department

Do you have questions regarding geodesy, coordinate systems or transformations? Are you looking for point descriptions, coordinates or heights for geodetic control points?

The Geodesy Department

Contact us at or call +46 26 63 39 32.
Our phone hours are weekdays 9-12.

Swepos Control Centre

Questions regarding Swepos, GNSS or network RTK can be directed to the Swepos Control Centre at or phone +46 26 63 37 53.

Customer Centre

Other questions can be directed to our Customer Centre at or phone +46 771 63 63 63.

Questions and answers

Lantmäteriet produces maps but no driving directions.

If you have found an error in your GPS navigator, you need to contact the navigation system manufacturer. We have some suggestions on whom to contact for error reporting.

The GPS measurements are primarily given in WGS 84, but SWEREF 99 can often be considered the same system. Read more about the relationship between WGS 84 and SWEREF 99.

To convert positions between latitude and longitude in WGS 84 and plane coordinates in SWEREF 99 TM, you can use the e-service Simple coordinate transformation.

However, old map data were produced in RT 90 2.5 gon V. For transformation of SWEREF 99 lat/long to RT 90 2.5 gon V, use the method recommended for transformation between RT 90 and SWEREF 99.

The difference between latitude and longitude in WGS 84 and RT 90, respectively, differs by up to 300 meters in Sweden; see Differences in latitude and longitude between RT 90 and global systems (pdf, in Swedish, new window).

Contents of this page may be automatically translated, we take no responsibility for the accuracy of the translation. Feel free to contact our customer support centre if you have any questions.

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