The Basic Steps to Cast from Your Phone or Computer

Casting means sending video, audio, or your entire screen from a phone, tablet, or computer to a Chromecast device plugged into your TV. The process takes about 30 seconds once your device is set up. Your phone or computer and the Chromecast must be on the same Wi-Fi network.

On an Android phone, open the app you want to cast from — YouTube, Netflix, Spotify, or any app with a cast button. Look for the cast icon, which looks like a rectangle with curved lines in the corner. Tap it, select your Chromecast device from the list, and the content plays on your TV. Your phone becomes a remote; you can pause, rewind, or adjust volume from the screen.

On an iPhone or iPad, the process is similar in most apps. Open the app, find the cast or AirPlay icon, and select your Chromecast. Some apps like YouTube and Netflix have the cast button built in. Others may require you to use Google Home app to cast the entire screen instead.

From a computer (Windows, Mac, or Chromebook), open Chrome browser, click the three-dot menu in the top right, select "Cast", choose your device, and pick whether to cast a tab or your entire screen. This works for any website or video your browser can play.

Key Takeaways

  • Your phone, tablet, or computer must be connected to the same Wi-Fi network as your Chromecast device before you can cast.
  • Most streaming apps have a built-in cast button; tap it and select your Chromecast to start playing on your TV.
  • You can cast a single app's content or your entire screen, depending on what you need and what your device supports.
  • Your phone or computer acts as a remote control while casting — you can pause, rewind, and adjust volume from the device in your hand.
  • Casting uses your Wi-Fi connection, not Bluetooth, so your phone stays connected to the network even while controlling playback.

Casting from Streaming Apps Like Netflix and YouTube

Netflix, YouTube, Disney+, Hulu, and most other streaming apps have a cast button built directly into the player. Open the app, start playing a show or video, and look for the cast icon — it appears in the top right or bottom right of the screen depending on the app. Tap it once to see a list of available Chromecast devices on your network.

Select your Chromecast from the list. The video stops on your phone and starts on your TV within a few seconds. The app on your phone now shows playback controls: play, pause, rewind, fast-forward, and volume. You can lock your phone, put it in your pocket, or switch to another app — the video keeps playing on your TV and you can control it anytime by opening the app again.

If you don't see a cast button in an app, the app may not support Chromecast. In that case, you can cast your entire phone screen instead using the Google Home app or your phone's built-in screen cast feature, though this uses more battery and may have slight lag.

Casting Your Entire Screen or Browser Tab

If an app doesn't have a cast button, or if you want to show your phone's home screen on the TV, you can cast your entire screen. On Android, swipe down from the top twice to open Quick Settings, look for "Cast" or "Screen cast", tap it, and select your Chromecast device. Your entire phone screen now appears on the TV, and everything you do on your phone shows up there.

On a computer, open Google Chrome, click the three-dot menu, select "Cast", then choose whether to cast a tab or your entire screen. Casting a tab is faster and uses less bandwidth — only that browser tab appears on your TV. Casting your entire screen shows everything on your desktop, which is useful for presentations or showing photos from a folder.

Screen casting drains your phone battery faster than app casting because it's constantly sending video data. If you're casting for more than an hour, plug your phone in. Also, screen casting may have a slight delay (usually under a second) compared to casting from an app directly.

Troubleshooting When Cast Doesn't Work

The most common reason casting fails is that your phone and Chromecast are on different Wi-Fi networks. Check that both devices show the same network name in their Wi-Fi settings. If you have a 2.4 GHz and 5 GHz network with the same name, try connecting your phone to the 2.4 GHz band — older Chromecast models work better on 2.4 GHz.

If your Chromecast doesn't appear in the cast list, restart both devices. Unplug the Chromecast for 10 seconds, plug it back in, and wait for the light to stop blinking. On your phone, turn Wi-Fi off and back on. Then try casting again. If the device still doesn't show up, open the Google Home app, tap your Chromecast device, and check that it's online and on the same network.

If casting starts but stops after a few seconds, or if the picture freezes, your Wi-Fi signal may be weak. Move closer to your router or restart your router by unplugging it for 30 seconds. Also check whether other devices are using a lot of bandwidth — streaming on another device, downloading large files, or video calls can interrupt casting.

Controlling Playback While Casting

Once content is casting, your phone or computer becomes a remote. In the app you're casting from, all the normal playback controls work: play, pause, rewind, fast-forward, and volume. You can also swipe to skip forward or backward by 10 seconds in most apps, or tap the progress bar to jump to a specific time.

If you're casting from a streaming app, you can usually adjust subtitles, change video quality, or switch audio tracks from your phone's controls. These changes take effect when ready on the TV. You can also lock your phone and put it away — the video keeps playing and you can pick up your phone anytime to pause or adjust something.

If you're casting your entire screen, your phone controls everything on the TV. This means you can open different apps, take screenshots, or switch between screens, and it all shows on the TV. This is useful for presentations or showing photos, but it also means anything you do on your phone is visible to everyone watching the TV.

Casting Audio to Speakers and Soundbars

Chromecast devices aren't just for TVs. Google Home speakers, Chromecast Audio devices (if you have older models), and many soundbars support casting. The process is identical: open a music app like Spotify, YouTube Music, or Pandora, tap the cast button, and select your speaker or soundbar instead of a TV.

Music apps work especially well with cast because you can control playback from your phone while the music plays through better speakers. You can also cast from multiple phones to the same speaker — some apps let you queue songs from different devices, though only one plays at a time. Check your app's settings to see if it supports multi-user casting.

If you're casting to a soundbar connected to a TV, the audio plays through the soundbar but the TV screen may show the app's interface or a blank screen depending on the soundbar model. Some soundbars show album art or a visualizer while music plays.

Casting from Different Devices and Browsers

Casting works the same way across Android phones, iPhones, iPads, Windows computers, and Macs, as long as they're on the same Wi-Fi network. However, some apps are Android-only or iOS-only, so not every phone can cast from every app. For example, some banking apps or games don't support casting at all.

On a computer, casting only works in Google Chrome. Firefox, Safari, and Edge browsers don't have built-in cast support. If you use a different browser, you can still cast your entire screen using your operating system's native screen mirroring feature, but you won't get the Chrome cast menu.

Chromebooks have the easiest casting experience because they're built on the same Google ecosystem as Chromecast. Click the cast button in Chrome, select your device, and it works when ready. Older Chromebooks may have a dedicated cast button in the taskbar instead of in the Chrome menu.

Frequently Asked Questions

Do I need to be on the same Wi-Fi network to cast?

Yes. Your phone, computer, and Chromecast must all be connected to the same Wi-Fi network. If you're on a guest network and your Chromecast is on the main network, casting won't work. Check your Wi-Fi settings to confirm both devices are on the same network name.

Can I cast if my phone screen is locked?

Yes. Once casting starts from an app, you can lock your phone and put it away. The content keeps playing on your TV and you can unlock your phone anytime to adjust playback. This doesn't work if you're casting your entire screen — locking the phone will pause the cast.

What happens to my phone battery while casting?

App casting (like Netflix or YouTube) uses very little battery because your phone is just sending commands. Screen casting drains battery much faster because your phone is constantly sending video. If you're casting for more than an hour, plug your phone in to avoid running out of battery.

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're already casting, their cast will take over and yours will stop. Some apps let multiple people queue content, but only one video or song plays at a time.

Why does casting sometimes lag or freeze?

Lag usually means your Wi-Fi signal is weak or your network is congested. Move closer to your router, restart your router, or check whether other devices are using a lot of bandwidth. If the problem persists, restart your Chromecast by unplugging it for 10 seconds.