Casting from Chrome to Chromecast: The Basic Steps

To cast content from your computer to a Chromecast device, open Chrome, click the three-dot menu in the top right corner, select Cast, choose your Chromecast device from the list, and then select what you want to send — your entire screen, a single tab, or just audio. The content appears on your TV within a few seconds. Your computer and Chromecast must be on the same Wi-Fi network for this to work.

The Cast feature works with any Chromecast device, including Chromecast built into smart TVs and displays. You do not need to install anything extra — the Cast button is built into Chrome on Windows, Mac, Linux, and Chromebook.

Key Takeaways

  • Open the three-dot menu in Chrome, click Cast, and select your Chromecast device to begin sending content to your TV.
  • You can cast your entire screen, a single browser tab, or audio only — choose the option that matches what you want to watch or listen to.
  • Your computer and Chromecast must be connected to the same Wi-Fi network, and both devices must be powered on.
  • Casting a tab uses less bandwidth than casting your entire screen and is the best choice for streaming video or audio from websites.
  • To stop casting, click the Cast icon again and select Stop Casting, or turn off your Chromecast device.

Finding and Opening the Cast Menu

The Cast button lives in Chrome's main menu. Click the three vertical dots in the top right corner of your Chrome window — this opens a dropdown menu with dozens of options. Scroll down until you see the word Cast with a small TV icon next to it. Click it.

A new window will pop up showing all Chromecast devices on your network. If you do not see your device listed, make sure it is powered on and connected to the same Wi-Fi network as your computer. Wait a few seconds and the list will refresh. If your device still does not appear, restart both your Chromecast and your computer's Wi-Fi connection.

Choosing What to Cast: Screen, Tab, or Audio

After you click Cast and select your device, Chrome asks you to choose what to send to your TV. The three main options are Cast screen, Cast tab, and Cast audio. Each one sends different content.

Cast screen sends everything on your computer monitor to the TV — your entire desktop, all open windows, and anything you type or click. This is useful for presentations, showing photos from your file manager, or playing games. The downside is that it uses more bandwidth and can slow down your computer slightly.

Cast tab sends only the content from one Chrome tab to your TV, leaving everything else on your computer private. This is the best choice for streaming video from Netflix, YouTube, or other websites, because it uses less bandwidth and keeps your other work hidden. You can continue using your computer normally while the tab plays on the TV.

Cast audio sends sound from your computer to your TV or speaker without sending video. Use this when you want to play music or a podcast through your TV's speakers but do not need to see anything on screen.

Checking Your Wi-Fi Connection Before Casting

Casting only works when your computer and Chromecast are on the same Wi-Fi network. Before you start, check that both devices are connected to the same network name — look at your computer's Wi-Fi icon in the system tray and your Chromecast's settings on the TV screen.

If your network has a 2.4 GHz and a 5 GHz option, both devices should connect to the same band for best results. Some older Chromecast models only support 2.4 GHz, so if casting fails, try connecting your computer to 2.4 GHz as well. You can check your Chromecast's supported bands in the Google Home app under device settings.

Stopping a Cast Session

To stop casting, click the Cast icon again — it now shows a blue TV icon instead of a gray one, indicating an active connection. A window opens showing your device name with a Stop Casting button. Click it, and the content will disappear from your TV within a few seconds.

You can also stop casting by turning off your Chromecast device, closing the Chrome tab you were casting, or shutting down your computer. The cast will end automatically if your computer loses Wi-Fi connection or moves out of range.

Common Problems and How to Fix Them

If your Chromecast does not appear in the Cast menu, the most common cause is that your computer and device are on different Wi-Fi networks. Check both devices' network settings and connect them to the same network. If they are already on the same network, restart your Chromecast by unplugging it for 10 seconds, then plugging it back in. Restart your computer's Wi-Fi as well by toggling it off and on.

If casting starts but the video freezes or lags, move your computer closer to your Wi-Fi router or Chromecast device. Walls, metal objects, and distance weaken the signal. If you are casting your entire screen, try casting a single tab instead — it uses less bandwidth and often performs better. Close other apps and browser tabs on your computer to free up bandwidth for casting.

If you see a black screen on your TV but hear audio, your Chromecast may be set to a different input. Use your TV remote to switch to the HDMI input where your Chromecast is plugged in. If the screen stays black after switching inputs, restart your Chromecast and try casting again.

Casting Video and Audio from Websites

Most video websites like YouTube, Netflix, and Hulu have their own Cast button built into the video player — you do not need to use Chrome's Cast menu. Look for a small TV icon in the bottom right corner of the video player, click it, and select your Chromecast device. This method is faster and more reliable than casting the entire tab.

If a website does not have its own Cast button, you can still cast the tab through Chrome's menu. Open the video in a Chrome tab, click the three-dot menu, select Cast, choose your device, and then select Cast tab. The video will play on your TV while you control it from your computer.

Frequently Asked Questions

Do I need to be logged into my Google account to cast?

No. Casting works as long as your computer and Chromecast are on the same Wi-Fi network. You do not need to sign into Google or link your devices. However, some streaming services like Netflix require you to be logged into your account on that service before you can cast their content.

Can I cast from my phone or tablet to Chromecast?

Yes, but you use the Google Home app or the Cast button in individual apps, not Chrome. On Android phones and tablets, open the app you want to cast from, tap the Cast icon, and select your device. On iPhones and iPads, only certain apps like YouTube and Netflix have built-in Cast buttons — Chrome casting is not available on iOS.

What happens to my computer screen when I cast a tab?

When you cast a single tab, your computer screen stays exactly as it is. Only that one tab's content appears on your TV. You can minimize Chrome, open other apps, or even turn off your monitor — the cast will continue playing on the TV. The tab must stay open in Chrome, but you can switch to other tabs or windows on your computer.

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

No. Only one device can cast to a Chromecast at a time. If someone else tries to cast while you are already casting, their cast will take over and yours will stop. Some Chromecast devices have a guest mode that lets you allow other people to cast without giving them access to your Wi-Fi password.

Why does casting sometimes stop when my computer goes to sleep?

Chromecast pauses the cast when your computer enters sleep mode because the Wi-Fi connection weakens. To prevent this, change your computer's power settings to keep it awake while casting. On Windows, go to Settings > System > Power & Sleep and set the screen to stay on. On Mac, go to System Preferences > Energy Saver and uncheck "Put the display to sleep after."