Run a speed test on any device connected to your WiFi

You check your WiFi speed by running a speed test — a tool that measures how fast data travels between your device and the internet. The test takes about 30 seconds and gives you three numbers: download speed (how fast you receive data), upload speed (how fast you send data), and ping (how long data takes to reach a server and come back). You do not need to install anything or pay for a test.

The easiest way is to visit Speedtest.net on any device connected to your WiFi — a phone, tablet, or computer. Open a web browser, type speedtest.net into the address bar, and press Enter. When the page loads, click the large blue button that says "Go" and wait while the test runs. Your results appear in seconds.

Other free speed test sites work the same way: Fast.com (made by Netflix), Google's speed test (search "internet speed test" in Google), and Ookla's Speedtest all measure the same thing. Pick whichever one loads first on your device.

Key Takeaways

  • Visit Speedtest.net or Fast.com on any device connected to your WiFi, click the button to start, and wait 30 seconds for your results.
  • Download speed is what matters most for streaming, browsing, and video calls — most people need 25 Mbps or higher for smooth use.
  • Run the test multiple times at different times of day, because WiFi speed changes depending on how many devices are using your network.
  • Move closer to your router before testing if you are far away, because distance and walls slow down WiFi more than your internet plan does.
  • If your speed is much lower than what your internet provider promised, restart your router and test again before contacting them.

Understand what your speed numbers mean

Download speed is the number that matters most for everyday use. It measures how fast you can pull data from the internet — watching YouTube, loading web pages, downloading files, or streaming music. Most people need at least 25 Mbps (megabits per second) for smooth streaming and browsing. If you have multiple people using the network at once, aim for 50 Mbps or higher.

Upload speed is how fast you can send data out. You use upload speed when you video call, upload photos to the cloud, or send large email attachments. Most people need 5 to 10 Mbps for video calls without freezing. Upload speed is usually much lower than download speed, and that is normal — most internet plans prioritize download.

Ping (also called latency) measures the delay between your device and the server, shown in milliseconds. Lower ping is better. Anything under 100 ms is fine for browsing and streaming. Gamers care more about ping because high ping causes lag, but for regular use you can ignore this number.

Test from different locations in your home

WiFi speed varies depending on where you are. Run the speed test in the room where you use the internet most — if you stream in the living room, test there. Then test in other rooms to see how distance and walls affect your speed. You may find your bedroom is much slower than your kitchen because it is farther from the router or has more walls between them.

If your speed is much slower in certain rooms, move your router to a more central location, or move it higher up (routers broadcast downward and outward, so a shelf or wall mount works better than the floor). If you cannot move the router, a WiFi extender or mesh system can improve speed in distant rooms.

Test at different times of day

Your WiFi speed changes throughout the day because it depends on how many devices are using your network and how much traffic your internet provider is handling. Test in the morning, afternoon, and evening to see the pattern. If speed is fine at 10 a.m. but terrible at 8 p.m., the problem is network congestion, not your router or plan.

If speed is consistently low no matter when you test, the issue is likely your internet plan, your router, or interference from other networks. If speed is only slow at certain times, there is not much you can do except wait or upgrade to a faster plan.

Restart your router before contacting your provider

If your speed test shows much lower speeds than your internet provider promised, restart your router before you call them. Unplug the router from power, wait 30 seconds, and plug it back in. Wait two minutes for it to fully restart, then run the speed test again. A restart often fixes temporary slowdowns.

Write down your speed test results — the download speed, upload speed, and the website you used — before you contact your provider. They will ask for these numbers. If your speed is still far below what you are paying for after a restart, you have a real problem worth reporting.

Know the difference between WiFi speed and internet speed

Your speed test measures your internet speed — the connection between your home and your internet provider. WiFi speed is the connection between your device and your router. These are not the same thing. A slow WiFi speed can happen even if your internet speed is fast, usually because your device is far from the router or your router is old.

If your speed test shows fast internet but you still have slow streaming or browsing, the problem is your WiFi, not your internet plan. Move closer to the router, restart it, or consider upgrading to a newer router. If your speed test shows slow internet no matter where you test, the problem is your internet plan or connection to your provider.

Frequently Asked Questions

What speed do I need for streaming movies?

Netflix recommends 5 Mbps for HD streaming and 25 Mbps for 4K. YouTube recommends 2.5 Mbps for HD. If you have multiple people streaming at once, add 5 to 10 Mbps for each additional stream. Most people are fine with 25 to 50 Mbps total.

Why is my WiFi speed slower than my internet speed?

WiFi is always slower than your wired internet connection because radio signals are weaker than cables. Distance from the router, walls, and interference from other networks all slow down WiFi. If the difference is huge (your internet is 100 Mbps but WiFi is 10 Mbps), your router may be old or broken.

Should I test on WiFi or plug in with an ethernet cable?

Test on WiFi if you want to know your WiFi speed. Test with an ethernet cable if you want to know your actual internet speed from your provider. Most people care about WiFi speed because that is what they use every day. If you are troubleshooting a problem, test both to see if the issue is WiFi or your internet connection.

How often should I check my WiFi speed?

You do not need to check regularly unless you are having problems. Test once when you first set up your internet to know what normal looks like, then test again if streaming starts freezing or pages load slowly. If your speed is consistently lower than your plan promises, test weekly to document the problem before calling your provider.

Can I improve my WiFi speed without upgrading my plan?

Yes. Restart your router, move it to a central location, keep it away from microwaves and cordless phones, and move closer to it when you use the internet. These changes often improve speed noticeably. If your internet speed is fine but WiFi is slow, a new router or mesh system may help.