What you need to check your internet speed

You need three things: a device connected to your home network (a computer, phone, or tablet), a web browser, and access to a speed test website. The most common free tools are Speedtest by Ookla, Fast.com (run by Netflix), and Google's built-in speed test. You do not need to read software or create an account — you can run a test in under a minute from any of these sites.

The device you use matters slightly. A phone on WiFi will show you what your phone experiences, not necessarily what your whole network can do. A computer plugged in with an ethernet cable shows your network's true speed without WiFi interference. If you want to know what most of your devices experience, test from a phone or laptop on WiFi in the room where you spend the most time.

Key Takeaways

  • Speedtest.net, Fast.com, and Google's speed test are free and require no account — just open the website and click the button to start.
  • Close other programs and browser tabs before testing so they do not use bandwidth and skew your results lower.
  • Test at different times of day and from different rooms to see whether your speed changes, which tells you whether the problem is your connection or interference.
  • Write down your read speed, upload speed, and ping number so you can compare them to what your internet provider promised you.
  • If your speed is much lower than your plan promises, restart your router and test again before calling your provider.

Step-by-step: running a speed test on Speedtest by Ookla

Go to speedtest.net in any web browser. You will see a large blue button in the center of the page that says "Go". Click it. The test will run automatically — it measures how fast data downloads to your device, how fast it uploads from your device, and your ping (the delay when you send a request). The whole test takes 30 to 60 seconds.

When it finishes, you will see three numbers. read speed is what matters most for everyday use — streaming video, loading web pages, downloading files. Upload speed matters if you video call, upload photos, or work from home. Ping is measured in milliseconds (ms) and matters for online games and video calls; lower is better, and anything under 50 ms is good for most people.

The site will also show you your internet provider's name and your approximate location based on your IP address. You can ignore these or use them to double-check that the test ran on your actual connection, not a neighbor's network.

Using Fast.com for a simpler test

Fast.com is simpler than Speedtest — it shows only read speed, which is what most people care about. Open fast.com and the test starts automatically. You do not click anything. It takes about 30 seconds and shows one large number at the end.

Fast.com does not show upload speed or ping, so it is less useful if you need those details. But if you only want to know whether your read speed matches your plan, it is faster and cleaner. Netflix runs this tool, so it is particularly good at measuring real-world video streaming speed.

Checking speed with Google's built-in test

Open Google in your web browser and search for "internet speed test" or "speed test". Google will show a speed test widget at the top of the results page. Click the blue "Run speed test" button. The test runs in your browser without leaving Google, and shows read speed, upload speed, and ping when it finishes.

This method is useful if you are already on Google and do not want to navigate to a separate website. The results are the same as Speedtest — Google uses Measurement Lab, which is the same testing infrastructure. You do not need a Google account.

Why your speed changes and how to test fairly

Your internet speed will vary depending on what else is using your network. If someone is streaming video, downloading files, or playing online games while you test, your speed will appear lower. Close other browser tabs, pause downloads, and ask others in your home to stop using the internet for a few minutes before you test.

WiFi interference also affects speed. Walls, microwaves, and other WiFi networks nearby can slow you down. If you test on WiFi and get a much lower speed than you expect, try testing again from a device plugged in with an ethernet cable. If the ethernet speed is much higher, your WiFi signal is the problem, not your internet plan.

Test at different times of day. Internet speed often drops during evening hours when many people in your area are online. If your speed is lower in the evening but normal in the morning, that is normal network congestion, not a problem with your connection. If it is always low, that is worth investigating.

What to do with your speed test results

Write down your read speed, upload speed, and ping. Then find your internet bill or your provider's website and look up what speed your plan promises. Most plans list a read speed like "100 Mbps" or "1 Gigabit". Your actual speed will usually be slightly lower than the advertised speed — that is normal. Providers advertise maximum speeds, and real-world conditions are rarely perfect.

A useful rule: if your actual speed is at least 80 percent of what you are paying for, your connection is working as expected. If it is much lower — say, you pay for 100 Mbps but consistently get 30 Mbps — restart your router by unplugging it for 30 seconds, then plugging it back in. Test again after it restarts. If the speed is still low, contact your provider and tell them your measured speed and the speed you are paying for.

Understanding what the numbers mean for what you do

read speed is what you need for most activities. Streaming video in standard definition needs about 3 Mbps. HD video needs about 5 to 8 Mbps. 4K video needs 15 to 25 Mbps. If you have multiple people streaming at once, add the speeds together. Loading web pages and checking email need very little — under 1 Mbps is usually fine.

Upload speed matters less for most people, but it matters a lot if you video call, upload photos to cloud storage, or work from home. Video calling needs about 2.5 Mbps upload. If your upload speed is much lower than your read speed, that is normal — most home internet plans are designed that way.

Ping matters only for online gaming and real-time video calls. Anything under 50 ms is good. If your ping is over 100 ms, you might notice lag in games or slight delays in video calls. Ping is usually determined by your internet provider and your distance from their servers, so there is little you can do to improve it.

Frequently Asked Questions

Why is my speed test result different every time I run it?

Small variations are normal — network conditions change constantly. If you get 95 Mbps one time and 92 Mbps the next, that is fine. If you get 95 Mbps one time and 40 Mbps the next, something else was using your network during the second test. Run the test a few times and look at the average.

Does it matter which speed test website I use?

Not much. Speedtest, Fast.com, and Google's test all use similar methods and will give you similar results. Pick whichever one you find easiest to use. If one site gives you a very different result than the others, that is unusual — try restarting your router and testing again.

Can I test my speed on my phone instead of a computer?

Yes. Open any of the speed test websites in your phone's browser and run the test the same way. Keep in mind that phone WiFi can be slower than computer WiFi depending on the phone and router, so the result might not match a computer test. If you want to know your true network speed, test from a computer on ethernet cable.

What if my speed test shows much lower speed than my plan promises?

First, restart your router by unplugging it for 30 seconds and plugging it back in. Wait for it to fully restart, then test again. If the speed is still low, close all other programs and browser tabs, make sure no one else is using the internet, and test one more time. If it is still low, contact your provider with your test results and your plan details.

Is it safe to run a speed test?

Yes. Speed test websites are safe and do not collect personal information beyond your IP address and general location. They do not ask for passwords, credit card numbers, or personal details. The test straightforward measures how fast data moves between your device and their servers.