The fastest way depends on what you own and what's already plugged in
You can stream from your PC to your TV using a cable, a wireless adapter, or built-in software on both devices. A HDMI cable is the simplest and cheapest option if your TV and PC are close together — you plug one end into your PC's HDMI port and the other into your TV, then switch the TV to that input. If you want to move around the room or your PC is in another room, wireless casting using Miracast, AirPlay, or a dedicated device like a Chromecast or Roku works without cables. The method you choose depends on whether your devices support the same standard and how far apart they are.
Key Takeaways
- An HDMI cable is the most reliable and cheapest way to connect a PC to a TV if both devices are within cable reach.
- Wireless casting through Miracast works on most Windows PCs and newer Samsung and LG TVs without needing extra hardware.
- Chromecast, Roku, Apple TV, and Fire TV devices all work with PCs but require you to own the device and have it plugged into your TV.
- Some streaming apps like Netflix and YouTube let you cast directly from the app on your PC to a compatible TV device.
- Audio and video quality are highest with HDMI; wireless methods may have slight lag or quality loss depending on your WiFi strength.
Using an HDMI cable for a direct connection
An HDMI cable connects your PC directly to your TV with no setup required beyond plugging it in. Locate the HDMI port on the back or side of your PC — most desktop computers have at least one, and most laptops made in the last ten years have one. Plug the HDMI cable into that port, then plug the other end into any HDMI port on your TV.
Switch your TV to the correct HDMI input using the remote or the input button on the TV itself. Your PC screen should appear on the TV within a few seconds. You can then choose whether to mirror your PC display (show the same thing on both screens) or extend it (use the TV as a second monitor). Right-click on your PC's desktop, select "Display settings," and choose your preferred mode under "Multiple displays."
HDMI cables are inexpensive — a good one costs between $5 and $15 — and this method has no lag or quality loss. The downside is that you are tethered to a cable, so you cannot move far from the TV or use your PC while it is connected unless you have a very long cable.
Wireless casting with Miracast on Windows
Miracast is a wireless standard built into Windows 10 and Windows 11 that lets you send your PC screen to a compatible TV or wireless display adapter without a cable. Your TV must support Miracast, or you need a Miracast adapter (a small device that plugs into your TV's HDMI port). Many newer Samsung, LG, and Sony TVs have Miracast built in; check your TV's manual or settings to confirm.
To cast with Miracast on Windows, press the Windows key and the K key at the same time, or go to Settings > System > Display > Multiple displays and select "Connect to a wireless display." Your PC will search for nearby Miracast devices. Select your TV or adapter from the list, and your screen will appear on the TV within a few seconds. You can disconnect by pressing Windows + K again and selecting "Disconnect."
Miracast works over your home WiFi network and has minimal lag. The range is typically 30 feet or less, depending on your router and walls. If your TV does not support Miracast, you can buy a Miracast adapter for $20 to $50 and plug it into an HDMI port on your TV.
Using Chromecast, Roku, Apple TV, or Fire TV
If your TV has a built-in Chromecast, Roku, Apple TV, or Fire TV platform, or if you own one of these devices plugged into your TV, you can cast from your PC to it. These devices are separate from your TV and must be purchased and connected to an HDMI port.
Chromecast (Google) works with any PC on the same WiFi network. Open Chrome, click the three-dot menu, select "Cast," choose your Chromecast device, and your screen appears on the TV. You can also cast individual tabs or windows instead of your whole screen. Chromecast devices cost $30 to $50.
Roku devices work similarly. On your PC, go to the Roku app or website, sign in, and select "Cast screen" to send your PC display to the Roku device on your TV. Roku devices range from $25 to $100 depending on the model.
Apple TV works with Mac computers through AirPlay, which is built into macOS. Windows PCs cannot use AirPlay natively, so this option is only for Mac users. Apple TV devices start at $99.
Fire TV (Amazon) devices do not have a native casting feature from Windows PCs the way Chromecast does. You can use third-party apps or mirror your screen through other methods, but it is not as straightforward.
Casting from streaming apps on your PC
Many streaming apps — including Netflix, YouTube, Disney+, Hulu, and Spotify — have a cast button built into the app itself. Open the app on your PC, click the cast icon (usually a rectangle with a WiFi symbol), select your TV or casting device, and the content plays on your TV instead of your PC screen.
This method works with Chromecast, Roku, Apple TV, Fire TV, and many smart TVs. The advantage is that you are not mirroring your entire PC screen — only the app is sending video to the TV, so your PC remains free to do other things. The cast button appears in the app's player controls or settings menu.
Not all apps support casting, and support varies by device. Check the app's help section or look for the cast icon when you open it. This is often the simplest way to watch content on your TV if you use streaming services regularly.
Comparing wireless methods by speed and reliability
| Method | Setup time | Lag | Range | Cost |
|---|---|---|---|---|
| HDMI cable | Seconds | None | Cable length | $5–$15 |
| Miracast | 10–30 seconds | Minimal | 30 feet | Free (if TV supports it) or $20–$50 for adapter |
| Chromecast | 10–30 seconds | Minimal | WiFi range | $30–$50 |
| Roku | 10–30 seconds | Minimal | WiFi range | $25–$100 |
| App casting (Netflix, YouTube, etc.) | 5–10 seconds | None | WiFi range | Free (if you own the device) |
Troubleshooting common streaming problems
If your PC does not appear on your TV after connecting an HDMI cable, try switching the TV to a different HDMI input using the remote. Some TVs default to the wrong input. If that does not work, restart both your PC and TV, then reconnect the cable.
If Miracast or wireless casting is not working, make sure your PC and TV are on the same WiFi network. Restart your router, then try casting again. If your TV does not show up in the cast list, check your TV's settings to confirm Miracast is turned on. Some TVs have this feature disabled by default.
If the picture is choppy or lags during wireless casting, move your PC closer to your router or TV, or reduce the number of other devices using your WiFi. Wireless casting is sensitive to network congestion. Switching to an HDMI cable will eliminate lag entirely.
If you are casting from an app and the cast button does not appear, check that your PC and TV device are on the same WiFi network. Some apps require you to be signed in to a specific account. Restart the app and try again.
Frequently Asked Questions
Can I use my PC as a second monitor for my TV?
No — your TV displays what your PC sends to it, not the other way around. However, you can extend your PC's display to your TV using HDMI or Miracast, which makes your TV act as a second monitor for your PC. This lets you open windows on either screen.
Do I need WiFi to cast wirelessly?
Yes, Miracast, Chromecast, Roku, and other wireless methods all require your PC and TV device to be on the same WiFi network. HDMI cables do not need WiFi at all.
What if my TV does not have HDMI ports?
Older TVs with only composite or component inputs cannot connect directly to a modern PC. You can buy an HDMI-to-composite converter, but the picture quality will be poor. A better option is to buy a Chromecast or Roku device and plug it into your TV's existing input, then cast wirelessly from your PC.
Can I stream from my PC to multiple TVs at once?
Chromecast and Roku allow you to cast to one device at a time, not multiple TVs simultaneously. If you want to display the same content on multiple TVs, you would need to cast to each one separately or use a different solution like a media server.
Is the picture quality the same on all methods?
HDMI and app casting deliver the highest quality with no compression. Miracast and Chromecast compress the video slightly to send it wirelessly, but the difference is usually not noticeable on most content. If you are watching high-resolution video or playing games, HDMI will give you the best results.