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Here we have collected formulas for some common calculations in geodesy.
Here you will find formulas for Gauss-Krüger's projection as well as for conversion between geocentric Cartesian and geodetic coordinates.
- Formulas for Gauss-Krüger's projection (pdf, new window), for transformation between geographic (j , l) and plane (N, E) coordinates.
- Formulas for calculating meridian convergence (pdf, in Swedish, new window). Meridian convergence is the angular difference between "map north" (or coordinate north) and the true north direction. "Map north", or coordinate north, is along the map grid north. The true north direction is along the direction of the meridian at the point.
- Formulas for transformation between geocentric Cartesian coordinates (X, Y, Z) and geodetic coordinates (j ,l, h) (pdf, in Swedish, new window).
- Conversion between different notations of latitude and longitude (xlsx, in Swedish, new window).Excel sheet for conversion between degrees; degrees and minutes; and degrees, minutes and seconds.