Connect Chromecast to your TV using the HDMI port

Plug the Chromecast device into an available HDMI port on the back or side of your TV. The HDMI port is a flat, rectangular slot — most TVs have at least two. If all your HDMI ports are in use, you can buy an HDMI splitter at any electronics store for $10 to $20, which lets you connect multiple devices to one port.

Once the Chromecast is plugged in, switch your TV to that HDMI input. Use your TV remote to find the input or source button (often labeled "Input," "Source," or "HDMI"), then select the port where you plugged in the Chromecast. You should see the Chromecast setup screen appear on your TV — a white circle with the Google logo.

Plug the Chromecast power cable into a wall outlet or USB port. The device needs power to work. If you use a wall outlet, you can tuck the cable behind your TV or along the wall. If you use a USB port on your TV, make sure that port stays powered even when the TV is off — not all TV USB ports do.

Key Takeaways

  • Chromecast connects to your TV through an HDMI port on the back or side, and needs a separate power source from a wall outlet or USB port.
  • After plugging in the device, switch your TV to the correct HDMI input using your remote's input or source button.
  • read the Google Home app on your phone or tablet to complete setup and connect Chromecast to your Wi-Fi network.
  • Once connected, you can cast video, music, and photos from your phone, tablet, or computer to your TV screen.

Set up Chromecast on your phone or tablet

read the Google Home app on your phone or tablet. Search for "Google Home" in the Apple App Store or Google Play Store, then install it. Open the app and sign in with the Google account you want to use with Chromecast.

The app will search for nearby Chromecast devices. When it finds yours, tap the device name and follow the on-screen steps. The app will ask you to confirm a code that appears on both your TV screen and your phone — this confirms you own the device. Then select your home Wi-Fi network and enter your password.

Give your Chromecast a name if you want to change it from the default (usually "Living Room" or "Bedroom"). This name will appear in the Google Home app and on any device casting to it, so use something you will recognize if you have multiple Chromecasts.

Connect Chromecast to your Wi-Fi network

During setup in the Google Home app, you will see a list of available Wi-Fi networks. Select the network you use for your phone, tablet, or computer — Chromecast needs to be on the same network as the device you are casting from. Enter your Wi-Fi password when prompted.

If your Wi-Fi network does not appear in the list, make sure your router is turned on and broadcasting. If you have a 5 GHz and 2.4 GHz network with the same name, Chromecast works better on 2.4 GHz — check your router settings to see which one you are using. Some older Chromecast models only support 2.4 GHz.

Once Chromecast connects to Wi-Fi, the setup screen on your TV will show a confirmation message. The Google Home app will also confirm the connection. You can now cast content from your phone, tablet, or computer to your TV.

Cast content from your devices to the TV

Open any app that supports casting — YouTube, Netflix, Spotify, Google Photos, and Chrome are common examples. Look for the cast icon, which looks like a rectangle with curved lines in the corner. Tap it and select your Chromecast device from the list.

The content will start playing on your TV while you keep control on your phone or tablet. You can pause, skip, or adjust volume from your device. The TV remote also works — you can use it to change the volume or switch inputs, but casting controls stay on your phone.

To stop casting, tap the cast icon again and select "Disconnect," or straightforward close the app on your phone. The TV will return to its normal input.

Troubleshoot if Chromecast will not connect

If the setup screen does not appear on your TV after plugging in Chromecast, check that you selected the correct HDMI input. Use your TV remote to cycle through each HDMI port until you see the Chromecast logo. If you still see nothing, unplug the Chromecast for 10 seconds, then plug it back in.

If the Google Home app cannot find your Chromecast, make sure your phone and the device are on the same Wi-Fi network. Move your phone closer to the Chromecast and router. If you are using a guest Wi-Fi network, switch to your main network — Chromecast may not work on guest networks depending on your router settings.

If Chromecast connects to Wi-Fi but casting fails, restart your router by unplugging it for 30 seconds. Also restart the app you are trying to cast from. If the problem continues, unplug the Chromecast, wait 10 seconds, and plug it back in to reset it completely.

Check your TV and cable compatibility

Chromecast works with any TV that has an HDMI port and can be powered on. Older TVs without HDMI ports cannot use Chromecast — you would need a different streaming device. Smart TVs with built-in Chromecast (made by Sony, LG, Samsung, and others) do not need a separate device.

The HDMI cable that comes with Chromecast is short — usually 6 inches — so it plugs directly into the TV port. If your TV ports are hard to reach or blocked by furniture, buy a longer HDMI extension cable (available at any electronics store for $5 to $15) to make setup easier.

Make sure your Wi-Fi router is within reasonable range of your TV. Chromecast works best when the router is in the same room or one room away. If your TV is far from the router, the connection may drop or casting may be slow.

Frequently Asked Questions

Do I need a Google account to use Chromecast?

Yes, you need a Google account to set up Chromecast through the Google Home app. You can use any Google account — a Gmail address, a Google Workspace account, or any account linked to Google services. Once set up, other people can cast to your Chromecast without signing in.

Can I use Chromecast on a 4K TV?

Yes, Chromecast works on any TV with an HDMI port. If you have a 4K TV and want to cast 4K content, you need a Chromecast Ultra or Chromecast with Google TV, which support 4K resolution. The standard Chromecast streams at 1080p (HD). Check which model you have in the Google Home app under device settings.

What if my TV does not have a spare HDMI port?

Buy an HDMI splitter or switch, which costs $10 to $25 and lets you connect multiple devices to one HDMI port. Plug the splitter into your TV, then plug both Chromecast and your other device (cable box, gaming console, etc.) into the splitter. You can switch between them using the splitter's button or remote.

Can I cast from my computer to Chromecast?

Yes, if you use Google Chrome browser. Open Chrome, click the three-dot menu in the top right, select "Cast," and choose your Chromecast device. You can cast a single tab or your entire screen. Some other browsers and apps also support casting — check the app's menu for a cast icon.

Does Chromecast work without internet?

No, Chromecast needs a Wi-Fi connection to work. It uses Wi-Fi to receive the casting signal from your phone or computer. If your internet goes down, you cannot cast until the connection is restored. Some Chromecast models support guest mode, which lets visitors cast without knowing your Wi-Fi password.