Internet Speed Test
Press the button and in a few seconds you will know how fast your connection downloads and uploads, and how quickly it responds. Nothing is measured until you decide.
Is the Wi-Fi worse in another room? Run the test next to the router, press «Pin to compare» and run it again there. It measures the speed reaching this device, not the Wi-Fi signal.
The test measures against Cloudflare’s network and uses up to 190 MB of data on very fast connections, less on slower ones. Solvemis does not receive or store your results.
Results are estimates. Solvemis accepts no responsibility for the results obtained or for how they are used.
Solvemis is free, with no sign-up. If it helped and you’d like to support the project: Buy me a coffee
How it works
How to use it
- To test your line rather than your Wi-Fi, plug your computer into the router with a cable if you can.
- Pause downloads, streaming or updates that are using the connection.
- Press Start test and wait about 20 to 30 seconds without switching tabs.
- You will see download, upload, latency and jitter. Run it a couple of times: if the results swing a lot, your connection is unstable.
How it is calculated
The test measures against Cloudflare's network using its open-source library, the same one behind speed.cloudflare.com. Download and upload are measured with files of increasing size, and the figure shown is the 90th percentile of all transfers. Latency is the median of 20 measurements, and jitter is the average change between consecutive measurements.
Mbps = megabits per second · 1 MB/s = 8 Mbps
Sources
- Cloudflare Speedtest: measurement library (open source, MIT) — Cloudflare
- Test your home network performance (methodology) — Cloudflare
About this calculator
What each number means
- Download: how fast you receive data. It matters for streaming, browsing and downloading files.
- Upload: how fast you send data. It matters for video calls, cloud backups and sharing large files.
- Latency (ping): how long a message takes to go and come back. It decides whether games and calls feel smooth, more than raw speed does.
- Jitter: how much that latency varies. A stable connection varies little.
Megabits are not megabytes
Internet plans are sold in megabits per second (Mbps), but files are measured in megabytes (MB), and one byte is eight bits. A 600 Mbps connection downloads at most 75 MB per second, so a 4 GB movie takes just under a minute, not seven seconds.
How much speed do you need?
| Use | Recommended download |
|---|---|
| Browsing, email, social media | 10 Mbps |
| HD video | 5–10 Mbps per screen |
| 4K video | 15–25 Mbps per screen |
| Video calls | 5 Mbps upload and low latency |
| Household with several people online | 100 Mbps or more |
For most homes, beyond roughly 100 Mbps the difference stops being noticeable day to day; what you do notice is latency and stability.
If your speed looks low
- Test over a cable. If it is fine by cable and slow on Wi-Fi, the problem is the Wi-Fi, not the line.
- Move closer to the router or away from thick walls. The 5 GHz band is faster but reaches less far than 2.4 GHz.
- Restart the router if it has been a while.
- Test again at another time. Some networks get congested in the evening.
- If you are still well below your plan by cable and at different times, keep screenshots of the results and contact your provider.
Privacy
The test runs between your browser and Cloudflare’s measurement servers. Solvemis never receives or stores your results: they are calculated and shown in your own browser. Like any server, Cloudflare receives the test requests; see our privacy policy for details.
Frequently asked questions
Why is my speed lower than what I pay for?
The bottleneck is usually inside the home: Wi-Fi, an old router, or a device that cannot go any faster. Plans also advertise maximum speeds, and some capacity is always used by the network itself. To test the line, run it again with your computer plugged into the router by cable.
What counts as good latency?
Under 20 ms is excellent for online gaming and video calls. Between 20 and 50 ms you will not notice anything in everyday use. From about 100 ms, calls and games start to feel laggy.
What is jitter?
Jitter is how much latency varies from one measurement to the next. A stable connection has a jitter of a few milliseconds. When it is high, video calls freeze and voices break up even if the speed is good.
Why do different speed tests give different results?
Each test measures against different servers using different methods. This one measures against the Cloudflare data center closest to you; others pick servers inside your provider's network, which can read a bit higher. Differences of 10–20% between services are normal.
How much data does the test use?
Up to about 190 MB on very fast connections, and much less on slower ones, because the test stops using large files when the connection cannot keep up. Keep that in mind if you are on mobile data.
Updated September 29, 2026
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