Here our national reference systems are described. You will also find information about coordinate transformations. We provide a number of services for different types of geodetic information as well as a formula collection comprising a number of common geodetic calculations.

The main purpose of geodesy

Photo showing a part of a terrestrial globe.

The main purpose of geodesy is to determine coordinates for the location of points on the Earth's surface in geodetic reference systems, elevations referred to reference surfaces and gravity values.

The responsibility of Lantmäteriet

Lantmäteriet is responsible for the national infrastructure by establishing and maintaining the geodetic networks as well as the national reference systems. The geodetic reference networks comprise ground control points with accurately determined horizontal and vertical positions as well as gravity values.

The national reference systems are SWEREF 99 in three dimensions and on the plane, RH 2000 in height and RG 82 for gravity. To secure height measurements using GNSS, we are also responsible for the geoid model SWEN17_RH2000.

Interactive services

Here you find a number of interactive services connected to the subject field of geodesy. You can e.g. transform coordinates or compute geoid heights.

More information

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