Test your Quantum Fiber speed

We know you're here for the speed. To see what speed you're getting with your current internet provider on your computer or mobile device, use the speed test tool below. Or, see how to check the app for network speed or device speed. Finally, watch a video or two to learn more about speed.

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Speed to your device
Test results show speed to the device, but may not reflect speed to your home or business
speedtestpowered Speed test dial

Speed test FAQs

Get answers to the most commonly asked questions about the speed test and how to understand the results.

The speed test on this page measures the speed on the specific device (mobile phone, tablet, or computer) you're using now. The speeds you see from device to device will vary quite a bit based on a number of factors, including: 

  • WiFi signal strength and setup
  • Age or limitations of individual devices
  • The number of devices using up your overall bandwidth

Check out Omar's speed story to get a sense of how much device speeds can vary under different conditions, and what's considered normal.

Internet speeds are given as "up to" the maximum total bandwidth of your plan. That's because of the conditions mentioned above, which are beyond the provider's control, including your location, type and age of devices, other equipment used, and more. 

You can check the speed to your home in the app by following the instructions in the next section. While you're there, you can also check to see what speed you're currently subscribed to.

Your test results will include download and upload speeds, and ping. 

Download speed is how fast data is transferred from the network to your device. 

Upload speed is how fast data goes in the other direction—from your device to the network.

Both download and upload speed are given in Megabits per second (Mbps) or Gigabits per second (Gbps). In other words, how much information (in Mb or Gb) is traveling each second.

Ping (also called latency) is the time it takes, given in milliseconds, for a packet of data to travel to the server and back to your device.  

Many factors impact the internet speeds you see at any given time. These factors include your devices, your connection, and the larger network.

Illustration of home network, including provider network and personal

Devices: No matter how fast the internet service, devices have their own speed limits. And some devices may be slower than your core connection speed, especially when you're running at gigabit speeds. For example, some laptops only support 100 or 200 Mbps.

How fast you access content is also affected by your device's processor and operating system, browser version, and security. Learn more about online security and why it's essential to good performance.

Illustration showing that older devices tend to get slower speeds

Number of devices: All devices connected to your network share the internet connection. Each one uses a portion of your available bandwidth, which then impacts the speed you get on each device. Multi-gig plans get around this issue by providing such massive bandwidth that you can connect almost unlimited devices without sacrificing speed on any of them.

Illustration showing many devices on the network

Distance from WiFi access point: The farther a device is from your modem/router or nearest WiFi pod, and the more obstacles (walls, floors, etc.) between them, the slower the actual speed will be. You get the best signal (and speed) when you are closer to your gateway or WiFi pod.

Other WiFi networks: WiFi networks overlapping or working in close proximity can cause signal interference and performance issues.

Other websites and networks you visit: Even though you purchased a specific internet speed through Quantum Fiber, the websites you visit may not deliver their services at that same speed. As you stream and surf the internet, the speed of each individual platform may be impacted by their server capacity. During peak hours especially, demand can overwhelm content providers' capacity, causing slower performance and lags when accessing that content or app.

The first thing to try anytime you're having a connection issue or a slowdown is to restart your modem or SmartNID. Restart from the app before you move on to these other steps to optimize your setup and maximize your speed:

  1. As much as possible, clear a path between your modem/SmartNID, or nearest WiFi pod, and your personal devices. Minimize blocking the signal to high-bandwidth devices with heavy walls, floors, or appliances. If you have a C5500XK or C6500XK SmartNID attached to your wall, DO NOT MOVE IT, as you could damage your fiber connection.

  2. Add or move 360 WiFi pods to reach areas of your home or business that are getting a weak signal.

  3. Use a wired (Ethernet) connection instead of WiFi for key high-bandwidth devices like a gaming system, work computer, or streaming device.

  4. Minimize the number of devices connected to the network and using up bandwidth at the same time.

  5. Keep devices up to date. For the best WiFi speeds, use newer devices made within the last few years.

  6. Keep operating systems and browsers up to date and protected from malware that can bog things down.

Check your speed in the app

In the Quantum Fiber app, you can check two different speeds with a quick tap. On your dashboard screen, look for these options: 

  • Check your network (option A in the screenshot) shows the download and upload speed to your home. 
  • Speed test to this device (option B in the screenshot) shows the current download and upload speed on your mobile device. 


You can find your current plan speed on the Account screen. Learn about how fiber speeds translate to speed test results on different devices.

App dashboard, option A to test speed to home
App screenshot, test speed to home, check your network
App dashboard, speed test option B speed to device
App screenshot, test speed to this device, mobile

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See what Quantum Fiber speeds are available near you.