The Basic Steps to Cast from Chrome

Casting from Google Chrome sends video, audio, or your entire screen to a Chromecast device connected to your TV. Open Chrome, click the three-dot menu in the top right, select "Cast", choose your Chromecast device from the list, and the content plays on your TV instead of your computer screen. The process takes about 10 seconds once your Chromecast is set up and connected to the same Wi-Fi network as your computer.

Your computer and Chromecast must be on the same Wi-Fi network for casting to work. If you have not set up your Chromecast yet, you will need to plug it into your TV's HDMI port, connect it to power, and run through the initial setup on your phone or computer first — that process is separate from casting itself.

Key Takeaways

  • Click the three-dot menu in Chrome, select "Cast", and pick your Chromecast device to send video or audio to your TV.
  • You can cast a single tab, an entire window, or your whole screen depending on what you are watching.
  • Your computer and Chromecast must be connected to the same Wi-Fi network for casting to work.
  • Casting continues even if you minimize Chrome or switch to another program, though some websites block casting for copyright reasons.
  • If your Chromecast does not appear in the Cast menu, restart both your computer and Chromecast, then check that they are on the same network.

Cast a Single Tab vs. Your Entire Screen

Chrome gives you three casting options. Cast tab sends only the browser tab you are watching — useful for YouTube, Netflix, or any website. Cast window sends an entire Chrome window, which is helpful if you have multiple tabs open and want to switch between them without interrupting playback on your TV. Cast entire screen sends everything on your monitor, including your desktop and other programs, which works when you want to show photos, documents, or anything else stored on your computer.

Most people use "Cast tab" for streaming video. The other two options are slower and use more bandwidth, but they let you control what appears on the TV from your keyboard without the TV showing your cursor or notifications. To switch between casting modes, click the Cast icon in your address bar and select a different option.

What Happens When You Cast

Once you select a Chromecast device, Chrome connects to it and the content appears on your TV within a few seconds. Your computer stays connected to the Chromecast over Wi-Fi — you can minimize Chrome, open other programs, or even lock your screen and casting continues. The audio and video stream directly from your computer to the Chromecast, not through the internet, so casting does not use your internet speed the way streaming does.

Some websites and apps block casting for copyright protection. Netflix, Disney+, and Hulu allow it, but some live sports streams and rental services do not. If you see "This video cannot be cast" when you try, that website has disabled the feature — you cannot work around it.

Troubleshooting: Chromecast Not Showing Up

If your Chromecast device does not appear in the Cast menu, the most common cause is that your computer and Chromecast are on different Wi-Fi networks. Check that both are connected to the same network name (SSID) in your Wi-Fi settings. If they are on the same network, restart your Chromecast by unplugging it for 10 seconds, then restart your computer and try again.

If the Chromecast still does not appear, open Chrome and type chrome://devices in the address bar. This page shows all Chromecast devices Chrome can see on your network. If your device appears there but not in the Cast menu, close and reopen Chrome. If it does not appear on the chrome://devices page at all, your Chromecast may not be set up yet or may be on a different network — check your Chromecast's Wi-Fi connection in the Google Home app.

Casting Audio Only

You can cast audio from Spotify, YouTube Music, or any website that plays sound without sending video to your TV. Click the Cast icon and select your Chromecast device, then play the audio. The TV will show a static image or album art instead of video, and your computer screen stays free for other work.

Audio casting is useful for playing music through your TV speakers while you work on something else. The audio quality depends on your TV speakers and your Wi-Fi connection, not your computer's speakers.

Casting Performance and Connection Issues

Casting works best when your computer is within 30 feet of your Chromecast and your Wi-Fi signal is strong. If video stutters or cuts out, move your computer closer to your router or Chromecast, or reduce interference from other devices using the same Wi-Fi band. Older routers that use only the 2.4 GHz band may struggle with casting — newer routers that support 5 GHz often perform better.

If your internet connection is slow, casting a tab may buffer because the website itself is loading slowly. Casting your screen or window does not depend on internet speed, only on your local Wi-Fi connection between your computer and Chromecast. If you are casting a video and it keeps buffering, the problem is usually your internet, not the casting feature.

Stopping a Cast and Disconnecting

To stop casting, click the Cast icon in Chrome and select "Stop casting". The video stops on your TV and returns to your computer screen. You can also unplug your Chromecast or turn off your TV — the cast will end automatically.

If you want to cast to a different device, click the Cast icon, select the new Chromecast, and the stream switches over. You do not need to stop the first cast — selecting a new device disconnects the old one.

Frequently Asked Questions

Can I cast from my phone or tablet to a Chromecast?

Yes. On Android, open the app you want to cast from (YouTube, Netflix, Spotify), tap the Cast icon, and select your Chromecast. On iPhone or iPad, the process depends on the app — some apps have a Cast button, others require AirPlay to an Apple TV instead. Google Chrome on mobile also supports casting the same way as desktop Chrome.

Do I need to be connected to the internet to cast?

Your computer and Chromecast must be on the same Wi-Fi network, but you do not need internet access for the cast itself to work. However, if you are casting a website or streaming service, that service needs internet to load the content. Casting a local video file or your desktop does not require internet at all.

Can I use my computer while something is casting to my TV?

Yes. Once casting starts, your computer is free to do other things. You can minimize Chrome, open other programs, or even lock your screen — the cast continues. If you are casting a tab, you can switch to other tabs or windows without interrupting playback.

Why does my cast keep disconnecting?

Disconnects usually happen when your Wi-Fi signal is weak or your computer moves too far from the router. Move closer to your router or Chromecast and try again. If disconnects happen frequently, restart both your computer and Chromecast, and check that no other devices are using a lot of bandwidth on your network.

Can I cast to multiple Chromecast devices at the same time?

No. Chrome can only cast to one Chromecast device at a time. To send the same content to multiple TVs, you would need to cast to one, stop it, then cast to another — or use a different casting method on each device.