The Basic Steps to Cast to Your TV

To cast to your TV, you need three things: a Chromecast device plugged into your TV's HDMI port, a phone or computer on the same Wi-Fi network, and the app or content you want to cast. Open the app you're using — YouTube, Netflix, Google Photos, or any other app with a cast button — tap or click the cast icon (it looks like a rectangle with a curved line in the corner), select your Chromecast device from the list, and the content appears on your TV within seconds.

The cast icon location depends on the app. In YouTube, it's in the top right corner. In Netflix, it's in the top right on phones or top left on computers. In Google Photos, it's in the top right. Some apps hide the cast button in a menu — look for three dots or lines. If you don't see a cast button, that app doesn't support casting.

Once you've selected your device, your phone or computer stays in control. You can pause, rewind, adjust volume, or stop casting from the same cast menu. Closing the app or turning off your phone doesn't stop the cast — you have to actively disconnect it.

Key Takeaways

  • Your phone or computer must be on the same Wi-Fi network as your Chromecast device for casting to work.
  • The cast icon appears in most streaming apps in the top right corner, but location varies — check the app's menu if you don't see it when ready.
  • Your phone or computer controls playback even after casting starts, so you can pause, rewind, or adjust volume from the cast menu.
  • Some apps let you cast your entire screen instead of just one app, which works for web browsers, photos, or anything else on your device.

Casting From a Phone or Tablet

On Android phones and tablets, open any app that supports casting — YouTube, Spotify, Google Photos, or a web browser — and look for the cast icon. Tap it, and a list of available Chromecast devices appears. Select the one connected to your TV. The content starts playing on your TV, and you'll see a blue banner at the top of your phone showing the cast is active.

On iPhones and iPads, the process is the same, but fewer apps have built-in cast buttons. YouTube, Netflix, Disney+, and Spotify all support it. If an app doesn't have a cast button, you can't cast from that specific app — but you can cast your entire screen instead, which works as a workaround for apps that don't support casting directly.

To stop casting, tap the cast icon again and select "Disconnect" or "Stop Casting." The content stops on your TV, and your phone returns to normal use.

Casting Your Entire Screen

If an app doesn't have a cast button, you can cast your whole phone or tablet screen to your TV. On Android, swipe down from the top of the screen twice to open the full Quick Settings menu, find "Cast" or "Screen Cast," tap it, and select your Chromecast device. Everything on your screen — apps, web pages, photos, text messages — now appears on your TV.

On iPhone or iPad, swipe down from the top right corner to open Control Center, tap "Screen Mirroring," and select your Chromecast device. Your entire screen mirrors to the TV. This method works for any app, but it drains your battery faster than casting a single app, and some apps (like games or banking apps) may not display properly or may block screen mirroring for security reasons.

To stop screen mirroring, open Control Center or Quick Settings again and tap "Stop Mirroring" or "Disconnect."

Casting From a Computer or Laptop

On a Windows or Mac computer, open Google Chrome and click the three-dot menu in the top right corner. Select "Cast" and choose your Chromecast device. You can cast a single tab (just that website or app) or your entire screen. Casting a tab is faster and uses less bandwidth — cast your whole screen only if you need to show something that isn't in a browser.

To cast a tab, click the "Sources" dropdown and select "Cast tab." To cast your entire screen, select "Cast desktop" or "Cast entire screen." Your computer's display appears on your TV, and you control it from your keyboard and mouse as usual.

To stop casting, click the cast icon again and select "Stop Casting." The icon disappears from your browser, and your TV returns to its normal input.

Troubleshooting When Casting Doesn't Work

The most common reason casting fails is that your phone, computer, and Chromecast are not on the same Wi-Fi network. Check that all three devices are connected to the same network name (SSID). If your router broadcasts both 2.4 GHz and 5 GHz bands with the same name, try connecting your phone to the 2.4 GHz band — some Chromecast devices work better on that frequency.

If the cast button doesn't appear in an app, that app doesn't support casting. Try a different app or cast your entire screen instead. If your Chromecast device doesn't appear in the cast menu, restart your Chromecast by unplugging it for 10 seconds and plugging it back in. Then restart your phone or computer and try again.

If casting starts but stops after a few seconds, your Wi-Fi signal may be weak. Move your Chromecast device closer to your router, or move your phone closer to the router while you're casting. If the picture is choppy or freezes, reduce the number of devices using your Wi-Fi, or restart your router.

What Happens to Your Phone While Casting

When you cast a single app or tab, your phone or computer stays in control but the app runs on your Chromecast device. You can use your phone for other things — check email, browse the web, or use other apps — and the cast continues on your TV. The volume and playback controls on your phone affect what's playing on your TV, not what's on your phone.

When you cast your entire screen, your phone mirrors everything to your TV. If you open a different app or lock your phone, the TV shows that change. This method is useful for presentations or showing photos, but it's less practical for watching video because your phone screen stays on and drains battery.

Frequently Asked Questions

Do I need a Google account to use Chromecast?

No. You need to be on the same Wi-Fi network as your Chromecast device, but you don't need a Google account. However, some apps that you cast from (like YouTube or Netflix) may require their own accounts.

Can I cast from multiple devices to the same TV at the same time?

No. Only one device can cast to a Chromecast at a time. If someone else tries to cast while you're casting, their device will ask if they want to take over. Taking over stops your cast and starts theirs.

Why does my Chromecast keep disconnecting?

Weak Wi-Fi signal is the most common cause. Move your Chromecast closer to your router, or restart your router. If it keeps happening, your Wi-Fi network may be overloaded — try connecting fewer devices or switching to the 2.4 GHz band if your router supports it.

Can I cast if I'm not home?

No. Your phone or computer and your Chromecast must be on the same Wi-Fi network. You can't cast over the internet from outside your home. Some newer Chromecast devices support remote casting through a Google Home account, but this requires setup ahead of time.

Does casting work with all streaming services?

Most major services support casting — YouTube, Netflix, Disney+, Hulu, Spotify, and Google Photos all work. Smaller apps or regional services may not. If an app doesn't have a cast button, you can always cast your entire screen instead.