The Map-Tools application
offers several utilities under google maps:
• Display coordinates, either geographical (WGS84 used in particular by the GPS system) or their conversion in different coordinate systems (Lambert, UTM, RGF93, ETRS89, NAD, ED, ...);
• measure distances and areas;
• Altitude display;
• import-export text, DXF, KML files;
• geolocation, drawing,...