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.

Transformation and calculation services

REFRAME

REFRAME allows you to transform coordinates in planimetry and/or altimetry.

NAVREF

NAVREF allows you to transform Swiss projection coordinates into global WGS84 coordinates (GPS) and vice versa.

REST web geoservices (REFRAME Web API)

swisstopo offers various REST ("REpresentational State Transfer") services which allow you to embed coordinate transformations into your own software products or web services.

KML generation

KML generation allows you to convert a file containing Swiss coordinates or a route recorded with a hand held GPS receiver into a KML file (compatible with Google Earth/Maps).

Magnetic declination

Magnetic declination is the difference between magnetic and geographic north. The difference between magnetic north and grid north is referred to as magnetic variation.


Federal Office of Topography swisstopo Seftigenstrasse 264
P.O. Box
3084 Wabern
Tel.
+41 58 469 01 11

E-mail


Relevant authority

Geodesy and Federal Directorate of Cadastral Surveying
E-mail


Print contact

Federal Office of Topography swisstopo

Seftigenstrasse 264
P.O. Box
3084 Wabern

Map

Show map