How to Connect Your PC to a TV Wirelessly

The fastest way to connect your PC to a TV without cables

You can connect your PC to a TV wirelessly using built-in Windows features, a streaming device, or your TV's native wireless connection. The method depends on what hardware you own and what you want to do — mirror your entire screen, stream video from one app, or extend your desktop across two displays.

Windows 10 and 11 include Miracast, a wireless standard that works with most modern TVs and streaming devices without extra software. If your TV doesn't support Miracast, a Chromecast, Roku, Fire Stick, or Apple TV will add wireless casting to any TV with an HDMI port. Some TVs also have built-in apps that let you connect directly — check your TV's manual or settings menu to see if yours does.

Key Takeaways

Windows 10 and 11 can cast to Miracast-compatible TVs and devices without installing anything, using the Settings menu or the Quick Settings panel.
Your PC and TV must be on the same Wi-Fi network for wireless connection to work.
Streaming devices like Chromecast, Roku, and Fire Stick add wireless casting to any TV and cost between $25 and $100.
Miracast mirrors your entire screen, while some apps and streaming devices let you cast just one window or video without showing your desktop.
Lag and video quality depend on your Wi-Fi signal strength — move your router closer or use 5 GHz Wi-Fi if available for better performance.

Connecting via Windows Miracast (built-in, no extra hardware)

If your TV supports Miracast or you own a Miracast adapter, you can cast your PC screen directly without buying anything extra. First, make sure your PC and TV are on the same Wi-Fi network. Then open the Quick Settings panel on your PC by pressing Windows key + A, look for "Cast" or "Project," and select it.

Click "Cast to a device" and wait a few seconds for your TV to appear in the list. Select your TV's name, and Windows will ask your TV to accept the connection — you may see a prompt on the TV screen. Once accepted, your PC screen will appear on the TV. To stop casting, open Quick Settings again and select "Disconnect."

If your TV doesn't show up, check that both devices are on the same Wi-Fi network and that your TV's Miracast feature is turned on (look in the TV's settings under "Screen Mirroring," "Wireless Display," or "AirPlay"). Some TVs require you to enable this feature before it appears in the cast list. If it still doesn't work, restart both your PC and TV and try again.

Using a streaming device (Chromecast, Roku, Fire Stick, or Apple TV)

A streaming device plugs into your TV's HDMI port and adds wireless casting even if your TV doesn't support Miracast. Google Chromecast ($30–$50) works with Windows PCs and casts video from Chrome browser tabs or apps that support Chromecast. Roku ($25–$100 depending on model) supports casting from Windows and has its own app store. Amazon Fire Stick ($25–$55) works similarly to Roku and integrates with Amazon services. Apple TV ($99–$199) is the most expensive option but offers the best integration if you use other Apple devices.

To set up any of these devices, plug it into your TV's HDMI port, power it on, and follow the on-screen setup steps to connect it to your Wi-Fi network. Once it's connected, your PC can cast to it. For Chromecast, open Chrome, click the three-dot menu, select "Cast," and choose your device. For Roku and Fire Stick, read the official app on your PC, open it, and select your device from the list. The device will appear in your cast menu once setup is complete.

Connecting through your TV's built-in apps (if available)

Many newer TVs have built-in wireless casting features or apps that let you connect directly without a separate device. Check your TV's remote for a button labeled "Screen Mirroring," "SmartThings," "AirPlay," or "Miracast." If you find one, press it and your TV will search for nearby devices to connect to. Select your PC from the list when it appears.

If your TV has a smart TV platform like Samsung SmartThings, LG WebOS, or Sony Bravia, you can also read the corresponding app on your PC. Open the app, sign in with the same account you use on your TV, and look for a "Cast" or "Connect" option. The exact steps vary by TV brand, so check your TV's manual or the manufacturer's website if you're unsure where to find these settings.

Troubleshooting common wireless connection problems

If your PC and TV won't connect, the most common cause is that they're not on the same Wi-Fi network. Check your PC's Wi-Fi settings and your TV's network settings to confirm both are connected to the same network name. If one is on 2.4 GHz and the other is on 5 GHz, they may not see each other — most routers broadcast both frequencies under the same network name, but some split them. Try connecting both devices to the same frequency band.

Weak Wi-Fi signal also causes connection failures and lag during playback. If your router is far from your TV, move it closer or use a Wi-Fi extender to boost the signal. If your router supports 5 GHz Wi-Fi, connect both your PC and TV to the 5 GHz band for faster, more stable casting — 2.4 GHz is slower but has better range through walls.

If your TV appears in the cast list but won't connect, restart both devices and try again. Disable any VPN software on your PC temporarily, as some VPNs block local network discovery. If you're using a Miracast adapter, make sure it's powered on and within range of your router. For streaming devices, check that the device's firmware is up to date by going to its settings menu and looking for a "System Update" or "Check for Updates" option.

Choosing between screen mirroring and app casting

Screen mirroring (Miracast) shows everything on your PC screen on the TV — your desktop, windows, and cursor. This is useful for presentations, showing photos, or playing games, but it uses more bandwidth and may cause lag if your Wi-Fi is slow. App casting sends video from just one app or browser tab to the TV without showing your desktop, which uses less bandwidth and reduces lag.

Most streaming apps like Netflix, YouTube, and Spotify support casting from their own apps rather than requiring screen mirroring. If you're watching video or listening to music, use the app's built-in cast button instead of mirroring your whole screen — it will be faster and smoother. Screen mirroring is best for tasks where you need to show your entire desktop, like presentations or spreadsheets.

Improving video quality and reducing lag

Wireless casting depends on Wi-Fi speed and signal strength. If you see stuttering, freezing, or delays, your Wi-Fi signal is likely weak or congested. Move your router closer to your TV and PC, or position it in a central location in your home. If you have a dual-band router, connect both devices to the 5 GHz band, which is faster but has shorter range — use 2.4 GHz if 5 GHz doesn't reach your TV.

Close other apps and browser tabs on your PC before casting to free up bandwidth. If multiple people are streaming video or downloading files on your network, ask them to pause temporarily while you cast. For gaming or video editing, wired HDMI connection will always be faster and more reliable than wireless, but if wireless is your only option, casting just the app window rather than your entire screen will reduce lag.

Frequently Asked Questions

Do I need a special cable or adapter to connect wirelessly?

No cable is needed for wireless connection. If your TV doesn't support Miracast, you'll need a streaming device like Chromecast or Roku, which plugs into the TV's HDMI port. Your PC connects to the device over Wi-Fi, not through a cable.

Can I use wireless casting if my PC and TV are on different Wi-Fi networks?

No. Both devices must be on the same Wi-Fi network to discover and connect to each other. If your home has a guest network, make sure both your PC and TV are on the main network, not the guest network.

Will wireless casting work if my TV is older and doesn't have Miracast?

Yes. Plug a Chromecast, Roku, Fire Stick, or Apple TV into your TV's HDMI port, and you can cast from your PC to that device. These devices add wireless casting to any TV with an HDMI input, regardless of age.

Is there lag when I cast video or play games wirelessly?

Some lag is normal with wireless casting, especially with screen mirroring. App casting (using Netflix's cast button, for example) has less lag than mirroring your entire screen. For gaming, wired HDMI will always be faster, but if you must use wireless, casting just the game window reduces lag compared to mirroring your desktop.

Can I use my PC keyboard and mouse while casting to the TV?

Yes. When you cast your screen, your keyboard and mouse still control your PC normally. You can type, click, and navigate while the screen is mirrored to the TV. Some streaming devices also support wireless keyboards and mice that connect directly to the device for easier control.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.