The fastest way depends on what you own

You can stream your PC to your TV using a cable, a wireless adapter, or built-in software — and which one works fastest depends on what hardware you already have. A HDMI cable is the simplest: plug one end into your PC and the other into your TV, then switch the TV to that input. Wireless options like Miracast, Chromecast, or AirPlay work without cables but need both devices on the same network and take a few seconds longer to connect.

If your PC and TV are in the same room and you do not mind a cable running between them, HDMI is the most reliable choice — no lag, no connection drops, no setup beyond plugging in. If you want to move around or your devices are far apart, wireless is worth the extra steps. The method you choose also depends on your TV model and whether you want to mirror your entire screen or cast a single app.

Key Takeaways

  • HDMI cable is the fastest and most stable option if your PC and TV are close enough to run a cable between them.
  • Miracast works on most Windows PCs and newer Samsung and LG TVs without needing an extra device, though connection takes a few seconds.
  • Chromecast and Fire TV devices turn any TV into a wireless receiver, but you need to buy the device separately.
  • Windows 10 and 11 have built-in wireless casting tools that work with compatible TVs and do not require third-party software.
  • Lag is usually not noticeable for watching video or browsing, but wired HDMI is better if you plan to play games or edit video.

Using an HDMI cable for a direct connection

An HDMI cable connects your PC directly to your TV with no setup, no pairing, and no network needed. Buy a cable long enough to reach from your PC to your TV — they come in lengths from 3 feet to 50 feet and cost between $5 and $20 depending on length and quality. Plug the HDMI end into your PC's HDMI port and the other end into any HDMI port on your TV.

Turn on your TV and use the remote to switch to the HDMI input where you plugged the cable in. Your PC screen should appear on the TV within a few seconds. If it does not, right-click on your Windows desktop, select Display Settings, scroll down to Multiple Displays, and choose Extend or Duplicate depending on whether you want the TV to show the same thing as your monitor or a separate workspace.

HDMI is the best choice if you have a laptop you want to dock in one place, or if your PC is in an entertainment center near the TV. The downside is the cable itself — it can be a tripping hazard, and you cannot move your PC far from the TV without unplugging. For a permanent setup, HDMI is unbeatable. For moving between rooms, wireless is more practical.

Wireless casting with Miracast on Windows

Miracast is a wireless standard built into Windows 10 and 11 that lets you send your screen to a compatible TV without a cable or extra device. Your TV must support Miracast — most Samsung, LG, and Sony TVs made in the last five years do, but older models and budget TVs often do not. Check your TV's manual or settings menu for a Miracast, Screen Mirroring, or Wireless Display option.

On your PC, press Windows key + K to open the Connect panel. Your TV should appear in the list if it is turned on and Miracast is enabled. Click your TV's name to connect. The first time you connect, your TV may ask you to confirm — select Yes or Allow. After that, reconnecting takes just a few seconds.

Miracast works best when your PC and TV are on the same WiFi network and within 30 feet of each other. Connection is usually stable, but you may see a one- to two-second delay between what you do on your PC and what appears on the TV. This lag is not noticeable for watching video or browsing the web, but it can make gaming or video editing feel sluggish. If your TV does not support Miracast, a wireless adapter like Google Chromecast or Amazon Fire TV Stick is the next best option.

Using Google Chromecast or Amazon Fire TV

If your TV does not have Miracast built in, you can plug a Google Chromecast or Amazon Fire TV Stick into an HDMI port to add wireless casting. Both devices cost between $30 and $50 and turn any TV into a wireless receiver. Chromecast works with Windows, Mac, Android, and iPhone. Fire TV works with Windows, Mac, Android, and Alexa devices.

Plug the device into an HDMI port on your TV and connect it to your WiFi network using the on-screen setup. On your Windows PC, open Chrome and click the three-dot menu in the top right, then select Cast. Your TV should appear in the list — click it to start mirroring. With Fire TV, read the Fire TV app on your PC, sign in with your Amazon account, and select your device from the app.

Both devices work reliably and add features beyond just mirroring — Chromecast lets you cast individual apps like Netflix or YouTube without mirroring your whole screen, and Fire TV integrates with Alexa voice commands. The trade-off is the upfront cost and the fact that both devices need power and WiFi. If you already own one of these devices for streaming, using it to cast from your PC costs nothing extra.

Casting individual apps instead of your whole screen

If you only want to send one app to your TV instead of mirroring your entire screen, Chromecast and some streaming apps let you cast without showing everything on your PC. Open the app you want to cast — Netflix, YouTube, Spotify, or others — and look for a Cast icon that looks like a rectangle with WiFi waves in the corner. Click it and select your TV from the list.

App casting uses less bandwidth than screen mirroring and usually has less lag because the app is running on the TV device itself rather than being sent from your PC. This method works best for streaming video and music. For browsing the web or using desktop software, full-screen mirroring is more practical because not every app has a cast button.

If you use Chromecast, you can also cast your Chrome browser tab instead of your whole screen — click the three-dot menu, select Cast, then choose Cast tab instead of Cast desktop. This keeps your other open tabs and windows private while only sending what you are watching to the TV.

Fixing connection problems and lag

If your PC and TV will not connect, start by checking that both are on the same WiFi network. Restart both devices — turn off your TV and PC completely, wait 10 seconds, and turn them back on. If you are using Miracast, make sure your TV has Miracast enabled in its settings menu (the exact location varies by brand, but it is usually under Network or Display).

If the connection keeps dropping, move your PC and TV closer together or move your WiFi router closer to both. Walls, microwaves, and cordless phones can interfere with WiFi. If lag is a problem, switch to HDMI if possible — wireless will always have some delay. For gaming, HDMI is the only reliable option because even a one-second delay can affect gameplay.

If you are casting from a laptop, make sure your laptop is plugged in — casting drains the battery quickly, and some laptops reduce performance when unplugged. Close other apps and browser tabs on your PC to free up bandwidth and processing power. If you are still having trouble, check the TV manufacturer's website for driver updates or firmware updates that might improve Miracast support.

Choosing between wired and wireless for your setup

Use HDMI if your PC stays in one place, you want zero lag, or your TV does not support wireless casting. Use Miracast if your TV has it built in and you want to avoid buying extra hardware. Use Chromecast or Fire TV if you want flexibility, already own the device, or your TV is older and does not support Miracast.

For most people, the choice comes down to convenience versus cost. A $10 HDMI cable is cheaper than a $40 Chromecast device, but a wireless device lets you move your laptop around the house. If you stream video or music most of the time, wireless is worth it. If you game or edit video, HDMI is worth the cable.

Frequently Asked Questions

Can I use my PC as a second monitor for my TV?

No — you can only send video from your PC to your TV, not the other way around. Your TV becomes an extended display or a mirror of your PC screen, but your PC cannot use your TV as an input device. If you want to use your TV as a monitor for your PC, that is the same as streaming: your PC sends the picture to the TV.

Will streaming from my PC to my TV drain my laptop battery?

Yes, wireless casting uses more battery than normal use because your laptop is processing and sending video constantly. Wired HDMI also drains the battery faster than normal, but less than wireless. If you plan to stream for more than an hour, plug your laptop in.

What if my PC has USB-C instead of HDMI?

Buy a USB-C to HDMI adapter (around $15) and plug it into your PC's USB-C port, then connect your HDMI cable to the adapter. Some newer PCs also support wireless casting through USB-C, but HDMI adapters are more reliable and work with any TV.

Can I stream 4K video from my PC to my TV?

Yes, but only with HDMI cable — wireless casting like Miracast and Chromecast usually downscale to 1080p or 1440p to reduce lag and bandwidth use. If you have a 4K TV and a PC with a 4K graphics card, use HDMI for the best picture quality.

Do I need to buy a new TV to use wireless casting?

No. If your TV does not have Miracast built in, a Chromecast or Fire TV device adds wireless casting to any TV with an HDMI port. These devices are cheaper than a new TV and work with older models.