The Basic Steps to Mirror Your Screen
Screen mirroring on Chromecast means sending everything on your device's display to your TV in real time. On most devices, you open the casting menu, select your Chromecast, and the mirroring starts within seconds. The exact steps depend on whether you are using a phone, tablet, or computer, but the principle is the same: your device finds the Chromecast on your home network and streams the display to it.
Before you start, make sure your device and Chromecast are on the same Wi-Fi network. If they are not connected to the same network, they cannot find each other. Also check that your Chromecast is plugged in and the TV is set to the correct input.
Mirroring works best when your device is within normal Wi-Fi range — typically 30 to 50 feet from the router, depending on walls and interference. If the connection drops or lags, move closer to the router or reduce the number of devices using the network.
Key Takeaways
- Your device and Chromecast must be on the same Wi-Fi network before you can mirror.
- On Android phones and tablets, open the Quick Settings panel and tap Cast to find your Chromecast.
- On Windows 10 and 11, use the Project menu (Windows key + P) to select your Chromecast as a wireless display.
- On Mac, open Control Center, click Screen Mirroring, and select your Chromecast from the list.
- Mirroring drains battery faster than normal use, so plug in your device if you plan to mirror for more than an hour.
Mirroring from Android Phones and Tablets
On Android, the casting menu is usually in Quick Settings. Swipe down from the top of the screen twice to open the full Quick Settings panel. Look for a button labeled Cast, Screen Cast, or Wireless Display — the exact name varies by phone maker and Android version. Tap it.
A list of available devices appears. Select your Chromecast by name. The connection takes a few seconds, and then your phone screen appears on the TV. Everything you do on your phone — opening apps, scrolling, typing — shows on the TV in real time.
To stop mirroring, open Quick Settings again and tap the Cast button, then select Stop Casting or Disconnect. Your phone screen returns to normal, and the TV shows whatever was on it before.
If you do not see a Cast button in Quick Settings, your phone may not support mirroring, or the feature may be hidden in a submenu. Check your phone's settings under Display or Connected Devices. Some older Android phones require a third-party app to mirror.
Mirroring from Windows 10 and 11
On Windows, use the built-in Project feature. Press Windows key + P on your keyboard. A menu appears on the right side of the screen with four options: PC screen only, Duplicate, Extend, and Second screen only.
Click Connect to a wireless display at the bottom of the menu. Windows searches for available devices. Your Chromecast appears in the list by its name. Click it to connect. The first time you connect, Windows may ask for permission — allow it. After that, your screen mirrors to the TV.
To disconnect, press Windows key + P again and select PC screen only. Your display returns to your monitor or laptop screen only.
If your Chromecast does not appear in the list, restart both your computer and Chromecast, then try again. Make sure both are on the same Wi-Fi network. On some networks, especially corporate or guest networks, mirroring may be blocked by the router settings.
Mirroring from Mac
On Mac, open Control Center by clicking the icon in the top-right corner of the menu bar (it looks like a rectangle with sliders). Look for Screen Mirroring in the Control Center menu. Click it.
A dropdown list shows available devices. Select your Chromecast by name. Your Mac screen appears on the TV within a few seconds. The menu bar and everything on your display are now visible on the TV.
To stop mirroring, open Control Center again, click Screen Mirroring, and select Stop Mirroring. Your Mac display returns to normal.
If you do not see Screen Mirroring in Control Center, your Mac may be too old to support Chromecast mirroring, or you may need to update macOS. Chromecast mirroring on Mac works best on models from 2013 and newer running macOS 10.10 or later.
Troubleshooting Connection Problems
If your device cannot find your Chromecast, the most common cause is that they are not on the same network. Check your device's Wi-Fi settings and make sure it is connected to the same network name as your Chromecast. If you have a 5 GHz and 2.4 GHz network with the same name, try connecting your device to the 2.4 GHz band — Chromecast works more reliably on 2.4 GHz.
If the connection keeps dropping or the picture lags, move your device closer to the router. Walls, microwaves, and other wireless devices can interfere with the signal. Restarting your router and Chromecast often fixes lag and disconnection issues. Unplug the Chromecast for 10 seconds, plug it back in, and wait for it to boot up before trying again.
If mirroring starts but the picture is choppy or freezes, reduce the number of apps running on your device. Mirroring uses significant bandwidth and processor power. Close unnecessary apps and avoid streaming video or downloading files while mirroring.
Battery Drain and Performance Tips
Screen mirroring drains your device's battery much faster than normal use because your phone or computer is constantly sending video data to the Chromecast. If you plan to mirror for more than an hour, plug your device into power. This is especially important for phones and tablets, which have smaller batteries than laptops.
Mirroring also uses a lot of Wi-Fi bandwidth. If other people in your home are streaming video or downloading large files, mirroring may lag or disconnect. Ask them to pause their activity, or move your router to a central location in your home to improve signal strength.
Brightness and screen timeout settings affect mirroring performance. If your device's screen times out while mirroring, the mirroring stops. Go to your device's display settings and increase the screen timeout to at least 10 minutes, or disable it entirely while you are mirroring.
What You Can and Cannot Mirror
When you mirror your screen, everything on your device appears on the TV — your home screen, apps, notifications, and any open windows. This includes private information like text messages, emails, and passwords if they appear on screen. Be aware of what is visible before you start mirroring, especially if other people are watching the TV.
Some apps, particularly streaming services like Netflix and Disney+, may not allow their content to be mirrored for copyright reasons. If you try to mirror while one of these apps is open, you may see a black screen or a message saying the app cannot be mirrored. In that case, close the app and mirror your home screen instead, then open the app on the TV using the Chromecast remote or a compatible app.
Audio from your device plays through your TV's speakers while mirroring. If your TV speakers are quiet or you want to use a soundbar, connect it to your TV before you start mirroring.
Frequently Asked Questions
Can I mirror my screen if my device is not on Wi-Fi?
No. Your device and Chromecast must both be connected to the same Wi-Fi network. If your device is using mobile data instead of Wi-Fi, you cannot mirror. Switch to Wi-Fi first, making sure it is the same network your Chromecast is on.
Does mirroring work on older Chromecast models?
Yes. Screen mirroring works on all Chromecast models, including the original Chromecast and Chromecast Audio. However, older models may be slower to connect or may have occasional lag. If you experience frequent disconnections, a factory reset of your Chromecast may help.
Can I mirror to multiple TVs at the same time?
No. One device can only mirror to one Chromecast at a time. If you want to mirror to a different TV, you must stop mirroring to the first one and then select the second Chromecast.
What happens to my device while I am mirroring?
Your device continues to work normally. You can use apps, answer calls, and receive notifications while mirroring. Everything you do appears on the TV in real time. If you receive a call, the mirroring pauses while you answer, then resumes when you hang up.
Why is the picture blurry or pixelated?
Blurriness usually means your Wi-Fi signal is weak or your device is too far from the router. Move closer to the router and make sure no other devices are using heavy bandwidth. Restarting your router and Chromecast also helps. If the picture is still poor, your internet speed may be too slow — Chromecast mirroring works best with at least 5 Mbps of available bandwidth.