Android Device Manager is now available in Google Search for desktop. If you search for [find my phone] or [find my tablet] and you're logged in to your Google account, you can see a map that shows the most recent location of your Android phone or tablet. If you have more than one Android device, there's a dropdown that lets you select other phones and tablets connected to your account. Click the map to open Android Device Manager.
The location is not displayed instantly, so you may see the message: "locating your phone" for a few seconds. Obviously, your phone or tablet needs to have a working Internet connection, location needs to be enabled and the setting: "remotely locate this device" has to be enabled in Google Settings / Security.
If your Android device is nearby, you can also click "ring" to quickly find it. "Your phone will ring at full volume for 5 minutes. Press its power button to stop the ringing."
{ via +Google }