PHOTOMOD GeoCalculator performs coordinate transformations according to Russian State Standard GOST R 51794-2001 and Interstate Standards GOST 32453-2013 (GOST R 51794-2008) and GOST 32453-2017. It implements transformations between Cartesian geocentric and geodetic (latitude longitude height above the ellipsoid) reference frames based upon geodetic datums WGS 84 Pulkovo 42 Pulkovo 95 GSK-2011 PZ-90 PZ-90.02 PZ-90.11 and ITRF-2008 as well as projected coordinate systems SK-42 SK-95 and GSK-2011 (based on Gauss-Kruger map projection). In addition some transformations not covered by the standards are supported namely ones involving WGS 84/UTM reference system and EGM96 geoid model.
Coordinates to be transformed can be typed-in manually measured in Google Maps or set to the current device location.