Find the GPS coordinates (latitude and longitude) in Google Maps. Place your cursor on any place on the map, you will see the location info below. If you wanna know the address of a GPS coordinate, just enter the latitude and longitude above the map and click find address, it will show you the exact location.
To reverse lookup an address for latitude and longitude, try this tool for a test.
If you do not enter any lat&lng above, it will show your rough location by default. Just get a rough view of the coordinates of the place you live or work or travel. Have fun!!