The basic steps to connect to Chromecast

To connect to Chromecast, your device and your Chromecast receiver must be on the same Wi-Fi network. Open the app or browser window you want to cast from, look for the Cast button (it looks like a rectangle with curved lines in the corner), tap or click it, and select your Chromecast device from the list. The content will then appear on your TV or display.

The Cast button appears in different places depending on what you're using. In Chrome browser, it's in the top right menu. In YouTube, it's near the video player controls. In Google Photos, Spotify, Netflix, and other apps, it's usually in the top right or bottom right corner. If you don't see it, the app may not support casting.

Your Chromecast device must be plugged into power and connected to the same Wi-Fi network as your phone, tablet, or computer. If your Chromecast is not showing up in the Cast menu, restart both devices and make sure they're on the same network — not a guest network or a different band (2.4 GHz vs. 5 GHz).

Key Takeaways

  • Your device and Chromecast must be on the same Wi-Fi network for casting to work.
  • The Cast button location varies by app, but it's usually in the top right or bottom right corner of the screen.
  • If your Chromecast doesn't appear in the Cast menu, restart both devices and check that they're on the same network.
  • Some apps like Chrome browser, YouTube, Netflix, and Spotify support casting, but not all apps do.
  • Once you tap Cast and select your device, content streams directly from your app to your TV — you don't need to keep your phone unlocked.

Setting up Chromecast for the first time

Before you can cast, your Chromecast device needs to be set up. Plug it into an HDMI port on your TV or display and into a power outlet. Turn on your TV and switch to the HDMI input where your Chromecast is connected. You should see a setup screen on your display.

On your phone or tablet, open the Google Home app. Tap the plus icon in the top left, select "Set up device," and choose "Set up new device." The app will search for your Chromecast and ask you to confirm a code that appears on both your screen and your phone. Select your Wi-Fi network, enter the password, and wait for the setup to finish. This usually takes a minute or two.

Once setup is complete, give your Chromecast a name (like "Living Room TV" or "Bedroom Display") so you can identify it when you cast. You can change this name later in the Google Home app by tapping the device, then the settings icon.

Casting from different devices and apps

Casting works from phones, tablets, and computers, but the process is slightly different on each. On Android phones and tablets, open any app that supports casting, tap the Cast button, and select your device. On iPhones and iPads, only certain apps like YouTube, Netflix, and Spotify have built-in Cast buttons — you cannot cast the entire screen from an Apple device to Chromecast.

From a Windows or Mac computer, you can cast using Chrome browser. 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. Casting a tab uses less bandwidth and lets you keep working on other tabs without interrupting what's playing on your TV.

Not every app supports casting. Common apps that do include YouTube, Netflix, Spotify, Google Photos, Disney+, Hulu, and Twitch. If an app doesn't have a Cast button, you may be able to cast your entire phone or computer screen instead, though this uses more data and drains your battery faster.

Troubleshooting when Chromecast won't connect

If your Chromecast doesn't appear in the Cast menu, start by restarting both your Chromecast and your phone or computer. Unplug your Chromecast for 10 seconds, plug it back in, and wait for it to fully boot up. Then restart your casting device. This fixes most connection problems.

Check that both devices are on the same Wi-Fi network. Some networks split into 2.4 GHz and 5 GHz bands. Chromecast works on both, but your phone or computer must be on the same band as your Chromecast. If your router broadcasts both bands under one name, try connecting your casting device to the 2.4 GHz band specifically, as older Chromecast models may not support 5 GHz.

If your Chromecast is set up but still won't show up, open the Google Home app, find your device, tap the three-dot menu, and select "Forget device." Then set it up again from scratch. If casting works on some apps but not others, the problem is likely with that specific app — try updating it or reinstalling it.

What happens while you're casting

Once you start casting, the content streams directly from the internet to your Chromecast device, not through your phone. This means you can lock your phone, switch to another app, or even turn off your phone without interrupting what's playing on your TV. Your phone only needs to stay on the same Wi-Fi network.

You can control what's playing using your phone as a remote. In the Cast menu, you'll see playback controls like play, pause, and volume. You can also use your TV remote if the app supports it — most streaming apps do. If you want to stop casting, tap the Cast button again and select "Stop casting."

Casting your entire screen

If an app doesn't have a Cast button, you can cast your entire phone or computer screen instead. On Android, open Settings, go to Display, and look for "Cast" or "Wireless display." Select your Chromecast device and your entire screen will appear on your TV. On a Mac, click the Control Center icon in the top right, select "Screen Mirroring," and choose your Chromecast.

Screen mirroring uses more bandwidth and drains your battery faster than casting a single app. The image may also lag slightly behind what you're doing on your phone. For these reasons, casting a single app is usually better if the app supports it. Screen mirroring is most useful for presentations, showing photos, or casting apps that don't have built-in Cast support.

Frequently Asked Questions

Do I need a Google account to use Chromecast?

Yes, you need a Google account to set up Chromecast using the Google Home app. However, once it's set up, other people on the same Wi-Fi network can cast to it without signing in — they just need to tap the Cast button and select your device.

Can I cast from my iPhone to Chromecast?

Yes, but only from apps that have built-in Cast buttons, like YouTube, Netflix, Spotify, and Disney+. You cannot cast your entire iPhone screen to Chromecast the way you can with Android. If an app doesn't have a Cast button, it doesn't support Chromecast.

Why does my Chromecast keep disconnecting?

Chromecast may disconnect if your Wi-Fi signal is weak, if your router is far away, or if your network is congested. Try moving your Chromecast closer to your router, or restart your router. If the problem continues, check that your Chromecast firmware is up to date in the Google Home app.

Can multiple people cast to the same Chromecast at the same time?

No, only one person can cast at a time. If someone else tries to cast while you're already casting, they'll be asked if they want to take over. The current cast will stop and the new one will start.

Does casting use a lot of data?

Casting streams content directly from the internet to your Chromecast, so it uses data from your Wi-Fi network, not your phone's data plan. If you're on a metered Wi-Fi connection, casting will count toward that limit. Screen mirroring uses more data than casting a single app.