The fastest way to check your speed

Open Speedtest.net in any web browser, click the big blue "Go" button, and wait 30 to 60 seconds. You'll see three numbers: download speed (how fast data comes to you), upload speed (how fast data leaves you), and ping (how long it takes for a signal to reach a server and come back). These are the core measurements of your connection.

You don't need to install anything or create an account. Speedtest is free and works on phones, tablets, and computers. Other reliable options include Fast.com (made by Netflix, focuses on download speed) and Google Speed Test (search "internet speed test" and Google runs one at the top of results). All three give you usable numbers within a minute.

For the most honest result, close other browser tabs and apps before you test. Streaming video, downloads, or background updates will drag your numbers down and won't reflect what your connection can actually do when you're not using it for something else.

Key Takeaways

  • Speedtest.net, Fast.com, and Google's speed test are free and take about a minute to show you your download speed, upload speed, and ping.
  • Download speed is what matters most for everyday use like streaming and browsing; upload speed matters if you video call or upload files regularly.
  • Close other apps and browser tabs before testing so background activity doesn't lower your numbers.
  • Run the test a few times at different times of day, because your speed changes depending on how many people are using your network.
  • Compare your results to what your internet provider promised you in your contract or on your bill.

What the three numbers actually mean

Download speed is measured in megabits per second (Mbps). This is how fast data comes from the internet to your device. For streaming video on Netflix or YouTube, you typically need 5 to 25 Mbps depending on video quality. For browsing websites and checking email, 10 Mbps is usually plenty. If you live with others and multiple people stream at once, you'll want 50 Mbps or higher.

Upload speed is also in Mbps and measures how fast data leaves your device to go to the internet. Most people don't notice upload speed until they video call, upload large files, or stream themselves playing games. Video calls usually need 2.5 to 4 Mbps. If you work from home and video call regularly, aim for at least 10 Mbps upload.

Ping is measured in milliseconds (ms) and shows how long a signal takes to travel from your device to a server and back. Lower is better. For web browsing and streaming, anything under 100 ms is fine. For online gaming or video calls, you want under 50 ms. Ping matters less for everyday internet use but becomes noticeable if you play competitive games or use real-time applications.

Why your speed changes throughout the day

Your internet speed is not fixed. It depends on how many people are using your network at the same time. If you test at 8 a.m. on a weekday, you might see faster speeds than at 7 p.m. when your household is home and streaming. The same is true for your entire neighborhood — your internet provider's equipment serves many houses, so peak hours (usually 6 p.m. to 10 p.m.) often bring slower speeds.

Weather also affects speed, especially if you have a cable or satellite connection. Heavy rain or snow can degrade the signal. Wi-Fi speed is affected by distance from your router and by interference from other devices — microwaves, cordless phones, and neighboring Wi-Fi networks all operate on the same radio frequencies.

For this reason, run your speed test at least three times: once in the morning, once in the afternoon, and once in the evening. If your evening speed is much lower than your morning speed, that's normal. If all three are far below what your provider promised, that's worth investigating.

Comparing your results to your contract

Find your internet bill or your service agreement. Your provider promised you a certain download speed — often written as "up to 100 Mbps" or "100 Mbps service." The word "up to" is important: it means that's the maximum under ideal conditions, not a may provide. Most providers consider it acceptable if you get 80% of the promised speed.

If you're consistently getting less than 80% of what you're paying for, contact your provider. Before you call, write down the speeds you measured (download, upload, and ping), the time of day you tested, and the device you used. Providers often ask these questions and having the answers ready speeds up the conversation.

Your provider may ask you to test while connected directly to the modem with an ethernet cable rather than over Wi-Fi. This eliminates Wi-Fi as a variable. If the wired speed is much higher than your Wi-Fi speed, the problem is your Wi-Fi setup, not your internet service.

Testing on Wi-Fi versus a wired connection

Wi-Fi is convenient but slower and less stable than a wired ethernet connection. If you plug your computer directly into your modem or router with an ethernet cable, you'll usually see faster speeds and lower ping. The difference can be significant — sometimes 20 to 50% faster on a wired connection.

For everyday use, Wi-Fi speed is usually fine. But if you're troubleshooting a slow connection, always test both ways. If Wi-Fi is much slower than wired, your router may be too far away, too old, or blocked by walls. If both are slow, the problem is your internet service itself.

Most modern routers have both 2.4 GHz and 5 GHz bands. The 5 GHz band is faster but has shorter range. If you're far from your router, you might be on 2.4 GHz without realizing it. Check your phone or computer's Wi-Fi settings to see which band you're connected to, then test on both if possible.

What to do if your speed is much slower than expected

First, restart your modem and router. Unplug both for 30 seconds, plug them back in, and wait two minutes for them to fully restart. This fixes a surprising number of speed problems because modems and routers can get overloaded and need a reset.

Second, test again from a different device and from different locations in your home. If speed is slow everywhere, the problem is your internet service or your modem. If it's slow only in one room or on one device, the problem is likely Wi-Fi interference or distance from the router.

Third, check whether your provider is having an outage. Search "[your provider name] outage" or check their website or social media. If there's an outage in your area, your speed will be slow until it's fixed.

If none of that helps and your speed is consistently below 80% of what you're paying for, contact your provider with your test results. They can run diagnostics on their end and may send a technician to check your modem and wiring.

Free tools beyond the basic speed test

Ookla's Speedtest app (the company behind Speedtest.net) lets you save your test history and see trends over time. You can see whether your speed is getting worse or staying consistent. The app is free on iOS and Android.

DSLReports Speed Test gives you more detailed information about your connection, including jitter (variation in ping) and idle latency. This is useful if you game or video call frequently and want to understand why your connection feels unstable even if the speed number looks okay.

Your router's admin page often shows real-time information about your connection. You can usually access it by typing 192.168.1.1 or 192.168.0.1 into a browser. This shows you the speed your modem is actually receiving from your provider, which is different from the speed you get over Wi-Fi.

Frequently Asked Questions

Why is my Wi-Fi speed slower than my wired speed?

Wi-Fi travels through air and is blocked by walls, distance, and interference from other devices. A wired ethernet connection is direct and unobstructed. If your Wi-Fi is much slower than wired, move your router to a central location, away from walls and metal objects, or switch to the 5 GHz band if you're close enough to the router.

Does it matter which speed test I use?

Speedtest.net, Fast.com, and Google's speed test all give similar results. Speedtest is the most widely used and lets you save history. Fast.com is simpler and focuses on download speed. Pick one and stick with it so you can compare your results over time.

What if my speed test shows different results each time?

Variation is normal. Your speed changes based on network congestion, interference, and what else is running on your device. If results vary wildly (like 50 Mbps one minute and 10 Mbps the next), run the test several times and average the results. Consistent variation of 10 to 20% is expected.

Can I test my speed on my phone?

Yes. Download the Speedtest app or open Speedtest.net, Fast.com, or Google Speed Test in your phone's browser. Keep in mind that phone speed over Wi-Fi depends on your Wi-Fi signal strength, which varies by location in your home. For the most accurate result, test from the same spot each time.

Is my speed slow because of my provider or my equipment?

Test with an ethernet cable plugged directly into your modem. If that speed matches your contract, your equipment (router or Wi-Fi) is the problem. If wired speed is also slow, contact your provider. They can check whether your modem is working correctly and whether there's an issue with the line coming into your house.