Add Your Chromecast to Google Home in Three Steps
To connect a Chromecast to Google Home, you need the Google Home app on your phone, your Chromecast plugged in and powered on, and both devices on the same Wi-Fi network. Open the Google Home app, tap the plus icon in the top left, select "Set up device," choose "Set up new device," and follow the prompts to connect your Chromecast. The app will find your Chromecast on the network, ask you to name it, assign it to a room, and confirm the Wi-Fi connection—the whole process takes about five minutes.
Once your Chromecast is added to Google Home, you can cast videos, music, and photos to it from your phone, control it with voice commands through a Google Home speaker, and group it with other devices for whole-home audio or video playback.
Key Takeaways
- Your Chromecast and phone must be on the same Wi-Fi network before you start the setup process in the Google Home app.
- The Google Home app guides you through naming your device and assigning it to a room, which makes it easier to control later.
- Once added, you can cast to your Chromecast from your phone or control it by voice through any Google Home speaker on the same account.
- If setup fails, restart your Chromecast by unplugging it for 10 seconds, then try again from the Google Home app.
What You Need Before You Start
Make sure your Chromecast is plugged into a power outlet and connected to your TV or monitor with an HDMI cable. The device should show a white light or display a setup code on your screen. If you see nothing, unplug it, wait 10 seconds, and plug it back in.
Your phone or tablet must have the Google Home app installed—read it from the Google Play Store (Android) or the App Store (iOS). Both your phone and your Chromecast need to be connected to the same Wi-Fi network. If your home has a 2.4 GHz and 5 GHz network with the same name, your Chromecast will connect to whichever one it finds first; this usually works fine, but if you have trouble, try connecting your phone to the 2.4 GHz network during setup.
Open the Google Home App and Start Setup
Launch the Google Home app and look for the plus icon (+) in the top left corner of the home screen. Tap it and select "Set up device" from the menu. The app will then ask whether you want to set up a new device or add an existing one to a different home—choose "Set up new device."
The app will search for nearby devices on your Wi-Fi network. When it finds your Chromecast, it will display the device name (usually something like "Living Room" or a model number). Tap on it to confirm you want to add this device.
Name Your Device and Assign It to a Room
After you select your Chromecast, the app will ask you to name it. You can keep the default name or type a custom one—"Bedroom TV," "Kitchen Display," or "Patio" are all common choices. A clear name makes it much easier to find the device when you have multiple Chromecasts in your home.
Next, the app will ask which room this device is in. Tap the room from the list (Bedroom, Living Room, Kitchen, etc.) or create a new room if needed. Assigning a room lets you control all devices in that space together and makes voice commands more specific—you can say "Hey Google, play music in the kitchen" instead of naming the device every time.
Confirm Your Wi-Fi Connection
The app will show you the Wi-Fi network your Chromecast is connected to. Confirm that it matches the network your phone is using. If your Chromecast connected to a different network (or a guest network), the setup will fail when you try to cast later. If the networks don't match, go back and manually select the correct Wi-Fi network from the Chromecast's settings.
Once you confirm the network, the app will finish setup and return to the home screen. Your Chromecast is now added to your Google Home account and ready to use. You should see it listed in the app under the room you assigned it to.
Cast Content and Control Your Chromecast
After setup, you can cast to your Chromecast from most apps on your phone—YouTube, Netflix, Spotify, Google Photos, and many others have a cast button (usually a rectangle with curved lines in the corner). Tap the cast button, select your Chromecast from the list, and the content will start playing on your TV.
You can also control your Chromecast by voice through any Google Home speaker on the same account. Say "Hey Google, play the news on the living room TV" or "Hey Google, pause the kitchen display." If you have multiple Chromecasts, always name them clearly so Google Home knows which one you mean.
Troubleshooting Common Setup Problems
If the Google Home app doesn't find your Chromecast, restart it by unplugging the device for 10 seconds, then plugging it back in. Wait for the light to stabilize, then open the Google Home app and try setup again. If your Chromecast still doesn't appear, restart your Wi-Fi router and your phone as well.
If your Chromecast connects during setup but casting fails later, the devices may have drifted onto different Wi-Fi networks. Open the Google Home app, tap your Chromecast, go to Settings, and check the Wi-Fi network listed there. If it's different from your phone's network, tap "Wi-Fi" and manually select the correct one. Some phones also have a "Wi-Fi Assistant" or "Smart Network Switch" feature that automatically changes networks—turn this off during setup to prevent your phone from switching away from your Chromecast's network.
Frequently Asked Questions
Do I need a Google Home speaker to use Chromecast?
No. You can cast from your phone to a Chromecast without owning a Google Home speaker. However, a Google Home speaker lets you control the Chromecast by voice and is useful if you want to play music or control multiple devices at once.
Can I add a Chromecast to Google Home if I don't have the original remote?
Yes. The Google Home app is all you need to set up and control a Chromecast. You don't need the physical remote that came with the device.
What if my Chromecast is already set up on someone else's Google account?
You'll need to factory reset the Chromecast first. Unplug it, hold down the reset button on the back (or bottom) for about 15 seconds while plugged in, and wait for the light to flash. Then open the Google Home app and set it up under your own account.
Can I use Chromecast on a 5 GHz Wi-Fi network?
Yes, but some older Chromecast models only support 2.4 GHz. Check your device's specifications to confirm. If your router broadcasts both bands with the same name, your Chromecast will connect to whichever one it finds first.
How many Chromecasts can I add to one Google Home account?
You can add as many as you want. Each one should be named clearly and assigned to a different room so you can control them individually or group them together.