The Basic Steps to Cast Your Screen

To share your screen on Chromecast, open the device menu on your phone, tablet, or computer and look for a "Cast" or "Screen Cast" option. Tap or click it, select your Chromecast device from the list, and your screen will appear on the TV within a few seconds. The exact steps differ slightly depending on whether you're using Android, iPhone, iPad, Mac, or Windows, but the principle is the same: your device finds the Chromecast on your network and sends a video feed to it.

Your phone, tablet, or computer and your Chromecast must be connected to the same Wi-Fi network for this to work. If they're on different networks, the Cast option won't show your Chromecast device. Once you've cast your screen, you can continue using your device normally—the screen will stay mirrored on the TV until you stop the cast.

Key Takeaways

  • Your device and Chromecast must be on the same Wi-Fi network before you can cast your screen.
  • Android phones and tablets use the Quick Settings menu to find the Cast option, while iPhones and iPads use Control Center.
  • Windows computers cast through the Action Center, and Macs use AirPlay through the menu bar.
  • Once casting starts, your device's screen appears on the TV in real time, and you can keep using your device while it's cast.
  • Casting drains your device's battery faster than normal, so plug in if you plan to cast for more than an hour.

Casting from Android Phones and Tablets

On Android, swipe down from the top of your screen twice to open the full Quick Settings menu. Look for "Cast" or "Screen Cast"—the name varies by manufacturer and Android version. Tap it, and a list of available Chromecast devices will appear. Select the one you want to use. Your Android screen will now mirror on the TV.

If you don't see a Cast option in Quick Settings, it may be hidden in an overflow menu. Tap the three dots or "More" button in the Quick Settings panel and look for Cast there. Some Android devices also let you cast through the Settings app under Display or Connected Devices, though the Quick Settings route is faster.

While your screen is cast, you can open apps, take screenshots, or show photos and videos. Everything you do on your phone or tablet will show on the TV. To stop casting, swipe down to Quick Settings again, tap Cast, and select "Stop Casting" or tap your device name to disconnect.

Casting from iPhones and iPads

On iPhone or iPad, swipe down from the top-right corner to open Control Center. Tap "Screen Mirroring" (or "AirPlay and Screen Mirroring" on newer models). A list of available devices will appear—select your Chromecast. Your iOS screen will mirror to the TV within a few seconds.

If you don't see your Chromecast in the list, make sure your iPhone or iPad is on the same Wi-Fi network as the device. Also check that your Chromecast is powered on and has finished starting up. If it still doesn't appear, restart your Chromecast by unplugging it for 10 seconds, then plugging it back in.

To stop mirroring, open Control Center again, tap Screen Mirroring, and select "Stop Mirroring." Your iPhone or iPad will disconnect from the Chromecast when ready.

Casting from Windows Computers

On Windows 10 or later, click the Action Center icon in the bottom-right corner of your taskbar (it looks like a speech bubble). Click "Project" or "Connect," then select your Chromecast from the list. Your Windows screen will begin casting to the TV.

If you don't see your Chromecast, make sure your computer is on the same Wi-Fi network. You can also cast through the Settings app: go to Settings > System > Display > Multiple Displays, then look for a "Connect to a wireless display" option. This method sometimes finds devices that don't appear in the Action Center.

While casting, you can use your computer normally. To stop, click the Action Center again, click "Project," and select "Disconnect." Your screen will stop mirroring when ready.

Casting from Mac Computers

On Mac, click the Control Center icon in the top-right corner of your menu bar (it looks like three overlapping circles). Click "Screen Mirroring," then select your Chromecast from the dropdown menu. Your Mac screen will mirror to the TV within a few seconds.

If your Chromecast doesn't appear in the Screen Mirroring menu, check that your Mac is on the same Wi-Fi network as the device. Also make sure your Chromecast is powered on and fully started. If it still doesn't show up, restart your Chromecast and try again.

To stop mirroring, click Control Center, click Screen Mirroring, and select "Stop Mirroring." Your Mac will disconnect from the Chromecast right away.

Common Problems and How to Fix Them

If your device can't find your Chromecast, the most common cause is that they're on different Wi-Fi networks. Check your device's Wi-Fi settings and make sure it's connected to the same network as your Chromecast. If you're using a guest network on your router, your Chromecast may not be on it—switch to your main network and try again.

If your screen starts casting but then disconnects, your Wi-Fi signal may be weak. Move closer to your router or Chromecast, or restart both devices. If the picture is choppy or laggy, close other apps on your device to free up memory and bandwidth. Casting uses a lot of processing power, so having many apps open in the background can slow it down.

If you cast audio but the video doesn't appear, or vice versa, try stopping the cast and starting over. On Android, also check that your screen rotation is not locked—some apps won't cast if rotation lock is on. On iPhone and iPad, make sure you're not in Low Power Mode, which can interfere with casting.

Tips for Better Casting Performance

Keep your device close to your Chromecast and router while casting. Wi-Fi range and signal strength matter—if you're far away or have walls between your device and the router, the connection may drop or become slow. If you're casting video or photos, a strong signal makes a big difference in picture quality.

Close apps you're not using before you cast. Each open app uses memory and can slow down your device's ability to send a smooth video feed to the Chromecast. If you're casting a presentation or video, close email, messaging apps, and web browsers first.

Plug your device into power if you're casting for more than an hour. Screen casting drains your battery much faster than normal use because your device is constantly sending video to the TV. A charger will keep your device running for as long as you need to cast.

Frequently Asked Questions

Can I cast my screen if my Chromecast is on a different Wi-Fi network?

No. Your device and Chromecast must be on the same Wi-Fi network to cast. If your Chromecast is on your main network but your phone is on a guest network, switch your phone to the main network first. Check your router settings to see which networks are available.

Will casting drain my phone or tablet battery?

Yes, casting uses more battery than normal because your device is constantly sending video to the TV. If you plan to cast for more than an hour, plug your device into a charger. Even while charging, your device may get warm during casting, which is normal.

Can I use my phone while my screen is being cast?

Yes. Everything you do on your phone will show on the TV in real time. You can open apps, take screenshots, or show photos and videos. Just remember that anything on your screen will be visible on the TV, including notifications and private messages.

Why does my screen keep disconnecting from Chromecast?

Weak Wi-Fi signal is the most common cause. Move closer to your router or Chromecast, or restart both devices. If you're casting video, also close other apps to free up bandwidth. If disconnections keep happening, your Wi-Fi network may be overloaded—try casting at a different time of day.

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

No. You can only cast your screen to one Chromecast device at a time. If you want to show your screen on multiple TVs, you would need to stop casting to the first device, then start casting to the second one.