Run a speed test from a device on your network

The fastest way to check your WiFi speed is to visit a speed test website from the device you want to measure — a laptop, phone, or tablet connected to your network. Open a web browser and go to Speedtest.net, Fast.com, or Google's built-in speed test (search "speed test" in Google). Click the button to start, then wait 30 to 60 seconds while the test sends data to a server and measures how fast it travels back.

The test will show three numbers: read speed (how fast data comes to you), upload speed (how fast data leaves you), and ping (how long a signal takes to reach the server and return, measured in milliseconds). Write these down or take a screenshot so you can compare them later.

Run the test at least twice, preferably at different times of day. WiFi speed varies depending on how many people are using the network, what they are doing, and where they are in your home. A test at 8 a.m. when nobody else is online will look different from a test at 7 p.m. when three people are streaming video.

Key Takeaways

  • Speed test websites like Speedtest.net or Fast.com measure your read, upload, and ping in under a minute from any device on your network.
  • read speed is what matters most for everyday use — streaming, browsing, and video calls all depend on it.
  • Run tests from different rooms and at different times to see how your signal varies across your home.
  • Compare your results to what your internet provider promised in your contract to see if you are getting what you pay for.
  • Slow speeds can come from WiFi interference, distance from the router, or too many devices online at once — not always from your internet plan.

Understand what read and upload speeds mean for what you do

read speed is the number that matters most for normal use. It controls how fast websites load, how quickly videos start playing, and how smooth video calls feel. For streaming video in standard definition, you need about 3 to 5 megabits per second (Mbps). For high-definition video, aim for 5 to 10 Mbps. If four people in your home are each doing something different — one streaming, one on a video call, one browsing — add those numbers together to see what you actually need.

Upload speed matters if you work from home, attend video calls, or upload photos and videos to the cloud. Most people need 1 to 3 Mbps for video calls and basic uploads. If you regularly upload large files or stream yourself (gaming, teaching, content creation), you may want 5 Mbps or higher.

Ping is the delay between when you send a signal and when you get a response back, measured in milliseconds. For web browsing and streaming, ping barely matters — even 100 milliseconds is fine. For online gaming or real-time video calls, lower is better. Anything under 50 milliseconds feels responsive; above 100 milliseconds, you may notice lag.

Compare your test results to your internet plan

Find your internet contract or bill and look for the promised read speed — it will say something like "up to 100 Mbps" or "gigabit internet." Run your speed test and compare. If you are getting 80 to 90 percent of what was promised, that is normal — "up to" means the provider does not may provide you will always hit that number. If you are getting less than 50 percent of the promised speed, contact your provider and ask them to check your line.

Keep in mind that the speed test measures your WiFi connection, not your internet plan. If you are getting slow speeds, the problem could be your WiFi signal, not your internet service. Test from a device plugged directly into your router with an ethernet cable to see if the problem is WiFi or your actual internet connection. If the wired test is fast but the WiFi test is slow, your router or signal strength is the issue.

Test from different locations in your home

WiFi signal weakens the farther you are from the router and the more walls it has to pass through. Run a speed test in the same room as your router, then run another test from the farthest room in your home. The difference will show you how much your signal drops across your space.

If speeds are good near the router but drop sharply in other rooms, you may need to move your router to a more central location, add a WiFi extender, or upgrade to a mesh network system. If speeds are slow everywhere, the problem is more likely your internet plan or your router itself.

Check how many devices are connected and what they are doing

Every device on your network — phones, tablets, computers, smart speakers, security cameras, smart TVs — shares your bandwidth. If ten devices are connected and five of them are active, your speed test will show the speed available to that one test, not the speed each device gets.

Before running a speed test, ask other people in your home to stop streaming, downloading, or uploading. Close any programs on your own device that might be using the internet in the background — cloud backup, automatic updates, or file syncing can all affect results. Then run the test. This shows you the maximum speed your network can deliver to one device.

If speeds are good when only one device is active but slow when multiple devices are in use, your internet plan may not be fast enough for your household, or your router may not be handling the load well. A newer router with WiFi 6 or WiFi 6E can handle more devices at once than older models.

Troubleshoot slow speeds before calling your provider

If your speed test shows you are getting less than 50 percent of your promised speed, restart your router before calling your provider. Unplug it for 30 seconds, plug it back in, and wait two minutes for it to fully restart. Run the speed test again. Many temporary slowdowns clear up after a restart.

Check that your router is in a good location — away from the floor, away from metal objects, and away from other wireless devices like microwaves or cordless phones. Move it to a higher, more central spot if possible. If you are testing on WiFi, move closer to the router and test again to rule out signal strength as the problem.

If speeds are still slow after restarting and repositioning, write down your test results and call your provider with the numbers. They can check whether the problem is on their end or your equipment. If they say the problem is your router, you may need to replace it or upgrade to a newer model.

Understand why WiFi speed differs from your internet speed

Your internet plan is a contract between you and your provider — they promise to deliver a certain speed to your home. Your WiFi is the wireless connection between your router and your devices. These are two separate things, and problems with one do not necessarily mean problems with the other.

If you plug a computer directly into your router with an ethernet cable and run a speed test, you are measuring your actual internet speed. If you run the same test on WiFi from across the room, you are measuring your WiFi speed, which will be lower because wireless signals weaken with distance and obstacles. This is normal. If your wired speed matches your plan but your WiFi speed is much slower, your router may be old, damaged, or in a poor location.

Frequently Asked Questions

What speed do I need for streaming Netflix or YouTube?

Netflix recommends 3 Mbps for standard definition and 5 Mbps for high definition. YouTube recommends 2.5 Mbps for HD. If you are streaming on one device, these speeds are enough. If multiple people are streaming at the same time, add the speeds together — two people watching HD video need about 10 Mbps combined.

Why is my WiFi speed slower than my wired speed?

WiFi signals weaken as they travel through air and walls, so wireless connections are almost always slower than a direct ethernet cable connection. This is normal. If the difference is huge — wired is 100 Mbps but WiFi is 10 Mbps — your router may be old, too far away, or blocked by obstacles. Try moving closer to the router or repositioning it to a more central location.

Should I run the speed test on my phone or my computer?

Either works, but use the same device each time you test so your results are comparable. Phones and computers may show slightly different speeds depending on their WiFi hardware, so switching devices between tests can make it hard to tell if your speed actually changed or if the device is just different.

How often should I check my WiFi speed?

Check it once when you first set up your network to establish a baseline, then check again if you notice slowness or if you upgrade your internet plan. You do not need to check it regularly unless you are troubleshooting a problem. If speeds drop suddenly, run a test to see if something has changed.

Can I improve my WiFi speed without calling my provider?

Yes, if the problem is your WiFi signal. Move your router to a central, elevated location away from metal and other wireless devices. Keep it away from microwaves and cordless phones. If that does not help, a newer router with WiFi 6 or a mesh network system can improve coverage and speed. If your wired speed is also slow, the problem is your internet plan, and you will need to contact your provider.