We can get mesurements (distance, length, area, altitude), drawing with export to DXF or text files, import Text, DXF, KML files, display WGS84 (used by GPS system) coordinates and converted in the chosen coordinate system, for example: UTM, Lambert, RGF93, NAD83, NAD27, Mercator.
Map-tools software is a set of tools associated with Google Maps and also a coordinate converter.