Chromecast and Roku Are Separate Systems That Don't Work Together

No, you cannot use Chromecast on a Roku device. Chromecast and Roku are two different casting systems made by different companies, and they do not work with each other. A Roku device has its own built-in casting technology called Roku Cast, which works only with apps and devices designed for Roku. If you want to cast from your phone or computer to a TV, you need either a Chromecast device or a Roku device—not both.

The confusion often comes from the fact that both systems do the same job: they let you send video, music, or photos from your phone or computer to your television. But they use different technology under the hood, so they cannot talk to each other. Think of them like two different brands of charging cables—they both charge phones, but a cable made for one brand will not fit another.

Key Takeaways

  • Chromecast and Roku are separate casting systems that do not work together on the same device.
  • Roku devices come with their own casting system called Roku Cast, which is built into the TV or streaming player.
  • If you have a Roku TV or Roku device, you can cast to it using the Roku Cast feature, but not using Chromecast.
  • Some smart TVs have both Chromecast and Roku built in, but you use one or the other depending on what you are casting from.

How Roku Cast Works Instead of Chromecast

If you own a Roku device or a Roku TV, you have access to Roku Cast, which is Roku's own casting system. Roku Cast is built into most Roku devices and many newer smart TVs that run Roku's operating system. To use it, you open an app on your phone—like Netflix, YouTube, or Spotify—and look for the Roku Cast button (it usually looks like a rectangle with curved lines coming from the top). Tap it, select your Roku device from the list, and the content plays on your TV.

Roku Cast works with iPhones, Android phones, tablets, and computers. The app has to support Roku Cast for it to work, but most major streaming apps do. You do not need to buy anything extra—if your Roku device is on the same Wi-Fi network as your phone, you are ready to go.

What Happens If Your TV Has Both Chromecast and Roku

Some newer smart TVs come with both Chromecast and Roku built in. In these cases, you have two separate casting systems on the same TV, and you choose which one to use depending on what you are casting from. If you are using an app that supports Chromecast, you tap the Chromecast button. If you are using an app that supports Roku Cast, you tap the Roku Cast button. The TV does not automatically pick one for you—you control which system you use.

This can be convenient because it gives you more options, but it also means you need to know which casting system your app supports. Most major apps support both, so in practice you can usually cast from either system to the same TV.

Why You Might See Both Names on Your TV

If you have a smart TV, you may see both "Chromecast" and "Roku" mentioned in the settings or on the box. This does not mean they work together—it means the TV has both systems built in as separate features. Google licenses Chromecast technology to TV manufacturers, and Roku does the same with its system. A TV maker can include both, just like a car can have both Apple CarPlay and Android Auto.

When you look at the TV's remote or settings menu, you will see them listed separately. Chromecast is usually labeled as "Google Cast" or "Chromecast built-in," while Roku's system is labeled as "Roku Cast" or just appears as part of the Roku operating system.

How to Know Which Casting System Your App Supports

The easiest way to learn about an app supports Chromecast or Roku Cast is to open the app and look for the casting icon. If you see a rectangle with curved lines (the Chromecast icon), the app supports Chromecast. If you see a similar icon labeled "Roku Cast" or just a cast symbol in the Roku style, it supports Roku Cast. Most popular apps like Netflix, YouTube, Spotify, and Disney+ support both, so you will usually have a choice.

If you do not see a casting icon in an app, that app may not support casting at all, or it may only support one system. You can also check the app's help section or settings to see which casting systems it supports.

What to Do If You Have a Roku Device but Want Chromecast

If you own a Roku device and want to use Chromecast instead, you have a few options. You can buy a separate Chromecast device and connect it to another HDMI port on your TV—this gives you both systems. You can also replace your Roku device with a different streaming device that has Chromecast built in, like a Google TV device or an Android TV device. However, you would lose access to Roku's app store and any Roku-specific features you currently use.

For most people, Roku Cast works just as well as Chromecast, so buying a separate device is not necessary. But if you have a strong preference for Chromecast or already own Chromecast devices in other rooms, adding a Chromecast to your setup is straightforward.

Frequently Asked Questions

Can I use a Chromecast remote with a Roku TV?

No. Chromecast and Roku use different remote systems. If your TV has both built in, you will need to use the Roku remote to control Roku features and a Chromecast remote (or your phone) to control Chromecast. Most people use the TV's main remote, which controls both systems.

If I cast from my phone to a Roku device, does it use Chromecast?

No, it uses Roku Cast. When you tap the cast button in an app on your phone and select a Roku device, you are using Roku's casting system, not Chromecast. The two systems work independently.

Can I use Chromecast on a Roku streaming stick?

No. Roku streaming sticks only have Roku Cast built in. If you want Chromecast on a streaming stick, you would need to buy a Google Chromecast device or a Google TV streaming device instead.

Do I need Wi-Fi to use Roku Cast?

Yes. Both Roku Cast and Chromecast require your phone and your TV to be on the same Wi-Fi network. If they are not connected to the same network, casting will not work.