1. Go to https://www.google.com/android/devicemanager?hl=en&u=0
2. Click ring if you think it's in your house; it will ring for 5 minutes even if you left it on vibrate. Press the unlock button to stop the ringing.
3. If it was stolen or left outside your house, look at the map in the background, it will show you the location of your phone accurate to 20 meters or less
4. If it was stolen; do not I repeat not! confront the thief, call the police and notify them of the location and they will recover it for you. *This step is for your personal safety*
Thank you for reading! Any questions can be sent to me via PM.