Run a speed test on any device connected to your WiFi

The fastest way to check your WiFi speed is to visit a speed test website on any device already connected to your network — a phone, laptop, or tablet. Open a web browser and go to speedtest.net, fast.com, or speedtest.googlefiber.net. These sites measure how fast data travels between your device and their servers, which tells you what your WiFi is actually delivering right now.

Click the large button in the center of the page to start the test. The test takes about 30 to 60 seconds and requires no sign-up. When it finishes, you will see three numbers: read speed (how fast you receive data), upload speed (how fast you send data), and ping (how long a signal takes to reach the server and come back). Write these numbers down so you can compare them later or show them to your internet provider if something seems wrong.

Key Takeaways

  • Speed test websites like speedtest.net measure your actual WiFi speed in seconds and show read, upload, and ping numbers.
  • Test from the room where you use the internet most, not from right next to the router, to see real-world speeds.
  • Run the test at least twice — once during the day and once at night — because speeds often drop when more people are online.
  • Your WiFi speed depends on both your internet plan and how far you are from the router, so distance matters as much as your provider's speed.
  • If your speed is much lower than what you pay for, restart your router and test again before contacting your provider.

Test from different rooms to find weak WiFi spots

WiFi strength drops the farther you are from your router, so run the speed test in the rooms where you actually use the internet. If you work from your bedroom, test there. If you stream video in the living room, test there. The numbers you get in each room show you where your WiFi is strong and where it fades.

Most routers have a range of 30 to 50 feet in open space, but walls, metal, and water block the signal. If you see a big drop in speed between rooms, that tells you the router is too far away or something is blocking the signal. This information helps you decide whether to move the router, add a second router, or use a wired connection in that room instead.

Run tests at different times of day to spot patterns

Your WiFi speed changes throughout the day because more devices use the network at different times. Test your speed in the morning, afternoon, and evening to see when it is fastest and slowest. Many homes see slower speeds in the evening when neighbors are also streaming and browsing.

If your speed is consistently lower than what you pay for — for example, you pay for 100 megabits per second but always see 40 — that is a real problem worth reporting to your provider. But if your speed is fine in the morning and drops only at night, the issue is usually network congestion, not your connection. In that case, moving your router or switching to a less crowded WiFi channel may help more than calling your provider.

Understand what the numbers mean

read speed is what matters most for everyday use. It measures how fast you can receive data — streaming video, loading web pages, downloading files. Most people need at least 25 megabits per second for smooth video streaming and web browsing. If you have multiple people streaming at once, you need faster speeds.

Upload speed matters if you video call, upload photos, or work from home. It measures how fast you send data to the internet. Most people need at least 5 to 10 megabits per second for video calls without freezing. Ping is the time it takes for a signal to travel to the server and back, measured in milliseconds. Lower ping is better for online gaming and video calls — anything under 50 milliseconds is good for most uses.

Restart your router before assuming there is a problem

If your speed test shows much lower speeds than you expect, restart your router before contacting your provider. Unplug the router from power, wait 30 seconds, and plug it back in. Wait two to three minutes for it to fully restart, then run the speed test again. Many temporary slowdowns clear up after a restart.

If the speed is still low after a restart, check that no one else is downloading large files or streaming video at the same time — that will drag down everyone's speed. If you are the only one using the network and the speed is still far below what you pay for, write down the numbers and contact your provider with those results. They can check whether the problem is on their end or with your equipment.

Use your phone or computer's built-in tools for a quick check

If you do not want to visit a website, some devices have built-in ways to check speed. On an iPhone, go to Settings, tap WiFi, and look for the WiFi network you are connected to — the signal strength bars show relative strength, though not actual speed numbers. On Android, go to Settings, tap Network and Internet, then WiFi, and select your network to see signal strength.

These built-in tools show signal strength but not actual speed. For real numbers, a speed test website is still the most reliable method. However, if your signal strength bars are low (one or two bars), that is a sign your WiFi is weak in that location, and a speed test will likely show slower speeds than in rooms closer to the router.

Compare your results to your internet plan

Your internet provider advertises a speed — often something like "up to 100 megabits per second." That "up to" matters: you may not always reach that speed, especially if you are far from the router or if the network is busy. A good rule is that your actual speed should be at least 80 percent of what you pay for. If you pay for 100 megabits per second, you should see at least 80 megabits per second in a speed test.

If you consistently see much less than that — say, 40 megabits per second when you pay for 100 — contact your provider and share your speed test results. They may be able to troubleshoot the problem or check whether your plan is actually delivering what you are paying for. Keep a record of several tests over a few days so you can show a pattern, not just one slow result.

Frequently Asked Questions

Why is my WiFi speed slower than my internet speed?

WiFi is always slower than the wired connection coming into your home because the wireless signal loses strength over distance and through walls. If your provider says your internet speed is 100 megabits per second, that is the speed of the cable or fiber line itself. Your WiFi speed will be lower, especially in rooms far from the router. This is normal.

Does the speed test website I use matter?

Different speed test websites may show slightly different results because they use different servers and measure at different times. If you want to track your speed over time, use the same website each time so your results are comparable. Speedtest.net and fast.com are both reliable and widely used.

Should I test on WiFi or a wired connection?

Test on WiFi if you want to know your actual WiFi speed. Test on a wired connection (plugging an ethernet cable directly into your router) if you want to know whether your internet plan itself is working correctly. A wired connection is usually faster than WiFi, so if your wired speed is also slow, the problem is with your internet provider, not your router.

What if my speed test keeps timing out or failing?

A failing speed test usually means your internet connection is too slow or unstable to complete the test. Try a different speed test website, or wait a few minutes and try again. If multiple tests fail, restart your router and try once more. If tests keep failing, contact your provider — your connection may have a serious problem.

How often should I check my WiFi speed?

Check your speed once a month or whenever you notice things loading slowly. If you are troubleshooting a problem, test multiple times over a few days to see whether the slowness is constant or happens only at certain times. You do not need to test constantly — once a month is enough to spot trends.