Transformation and calculation services
The calculation services will help you to convert coordinates and data formats as well as to calculate the magnetic declination of a given point in Switzerland.

Documents & Publications
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Approximate formulas for the transformation between Swiss projection coordinates and-WGS84
PDF, 4 page(s), 146 KB, English -
Formulas and constants for the calculation of the Swiss conformal cylindrical projection and for the transformation between coordinate systems
PDF, 20 page(s), 490 KB, English -
Geodetic REST Web services User Manual (Reframe API)
PDF, 20 page(s), 798 KB, English
Federal Office of Topography swisstopo
Seftigenstrasse 264
P.O. Box
3084 Wabern
P.O. Box
3084 Wabern
- Tel.
- +41 58 469 01 11
Technical support