Pairing your Chromecast takes about five minutes and requires only your device, your WiFi password, and the Google Home app

Pairing means connecting your Chromecast to your home WiFi network so it can receive video and audio from your phone, tablet, or computer. The device itself doesn't pair directly to your phone — instead, both your phone and your Chromecast connect to the same WiFi network, which lets them talk to each other. You'll use the Google Home app to walk through the setup, and the app will guide you through each step.

The process is the same whether you're using an Android phone, an iPhone, an iPad, or a Mac or Windows computer. You'll need your WiFi network name and password ready before you start, because the Chromecast will ask for them during setup.

Key Takeaways

  • read the Google Home app on your phone or tablet before you begin — this is the tool that walks you through pairing.
  • Plug your Chromecast into a power outlet and an HDMI port on your TV, then wait for the light to start blinking, which means it's ready to pair.
  • Open the Google Home app, tap the plus icon to add a device, select your Chromecast from the list, and enter your WiFi password when prompted.
  • Once pairing is complete, you can cast video from apps like YouTube, Netflix, and Disney+ directly to your TV from your phone.

What you need before you start

Gather these items before you open the Google Home app. You'll need your WiFi network name (the name you see when you look for available networks on your phone) and your WiFi password (the password you use to connect to that network). If you don't know your WiFi password, you can usually find it on the back or bottom of your router, or you can check your router's settings through its app.

You also need the Google Home app, which is free. If you don't have it, read it from the Google Play Store (Android) or the Apple App Store (iPhone and iPad). On a Mac or Windows computer, you can pair through a web browser instead — go to home.google.com and sign in with your Google account.

Make sure your phone or computer is connected to the same WiFi network you want your Chromecast to use. Your Chromecast will connect to that same network during pairing.

Plugging in your Chromecast and preparing it

Plug the power cable into your Chromecast, then plug the other end into a power outlet. Next, plug the HDMI end of your Chromecast into an available HDMI port on the back or side of your TV. If your TV doesn't have a free HDMI port, you may need an HDMI splitter (a small device that lets you plug multiple HDMI cables into one port).

Turn on your TV and switch to the HDMI input where you plugged in the Chromecast. You should see a Google logo appear on the screen, and a light on the Chromecast itself will start blinking. A blinking light means the device is ready to pair. This usually takes 30 seconds to a minute after you plug it in.

Opening the Google Home app and starting pairing

Open the Google Home app on your phone or tablet. If you're not already signed in with a Google account, sign in now. At the bottom of the screen, you'll see a plus icon (it looks like a + in a circle). Tap that icon.

The app will show you a menu with options. Tap "Set up device" or "Set up new device" (the exact wording varies slightly by phone). The app will then ask whether you want to set up a new device or set up a device that's already set up. Choose "Set up new device".

The app will search for nearby devices. When it finds your Chromecast, it will appear in a list with a name like "Chromecast" or "Living Room" (if it was previously named). Tap the device name to select it.

Entering your WiFi information and completing pairing

The app will ask you to confirm that you see a code on your TV screen. Look at your TV — you should see a four-digit code displayed. Type that code into the app on your phone. This step confirms that you're pairing the right device.

Next, the app will ask you to select your WiFi network from a list. Find your network name in the list and tap it. The app will then ask for your WiFi password. Type it in carefully — passwords are case-sensitive, which means capital letters and lowercase letters are different. Once you enter the password, tap "Next" or "Connect".

The app will show a progress screen while your Chromecast connects to the WiFi network. This usually takes 30 seconds to two minutes. Once the connection is complete, the app will ask if you want to give your Chromecast a custom name (like "Bedroom TV" or "Living Room"). You can name it now or skip this step — you can always change the name later in the app.

Testing your pairing and casting your first video

Once pairing is complete, the Google Home app will show your Chromecast in the list of devices. To test that everything is working, open an app that supports casting — YouTube, Netflix, Disney+, Spotify, and many others all work. Look for a cast icon (it looks like a rectangle with curved lines in the corner, like a WiFi symbol rotated). Tap that icon.

A menu will appear showing your Chromecast by name. Tap it, and the video or music should start playing on your TV instead of on your phone. You can now control playback from your phone — pause, play, skip forward, and adjust volume all work through your phone's screen.

Pairing from a computer instead of a phone

If you want to pair from a Mac or Windows computer, go to home.google.com in your web browser and sign in with your Google account. Click the plus icon in the top left corner and select "Set up device". The browser will walk you through the same steps: confirming the code on your TV, selecting your WiFi network, and entering your password.

Once pairing is complete through the browser, your Chromecast will appear in the Google Home app on any phone or tablet signed in with the same Google account. You don't need to pair it again — pairing happens once per device, and then any phone or computer on your WiFi network can cast to it.

Frequently Asked Questions

What if my Chromecast doesn't appear in the app when I try to pair it?

Make sure your phone and Chromecast are both plugged in and powered on. Check that your phone is connected to the same WiFi network you want the Chromecast to use. If the Chromecast light is not blinking, unplug it for 10 seconds and plug it back in. If it still doesn't appear after a minute, restart your phone and try again.

Can I pair my Chromecast to a guest WiFi network?

Yes, but guest networks sometimes block devices from communicating with each other. If you pair to a guest network and casting doesn't work, try pairing to your main WiFi network instead. Some routers let you adjust guest network settings to allow device-to-device communication — check your router's app or manual.

Do I need a Google account to pair my Chromecast?

Yes, you need to be signed into a Google account in the Google Home app to pair. Once pairing is complete, anyone on your WiFi network can cast to the Chromecast without signing in, but the initial setup requires a Google account.

What if I forget my WiFi password?

Check the back or bottom of your router — many routers have the WiFi password printed on a sticker. You can also log into your router's settings through its app or by typing your router's IP address into a web browser. If you still can't find it, contact your internet provider or router manufacturer for help resetting it.

Can I pair the same Chromecast to multiple WiFi networks?

A Chromecast can only be connected to one WiFi network at a time. If you want to move it to a different network, open the Google Home app, find your Chromecast, tap the settings icon, and select "WiFi" to change the network. You'll need to enter the new network's password.