Internet Speed Test
Press the button and in a few seconds you'll 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 measure your line rather than your Wi-Fi, connect your computer to the router by cable if you can.
- Close downloads, videos or updates that are using the connection.
- Press the start button and wait about 20 or 30 seconds without switching tabs.
- You'll see download, upload, latency and jitter. Repeat the test a couple of times: if the results vary a lot, the connection is unstable.
How it is calculated
It measures against Cloudflare's network with its open-source library, the same one used by 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 the average variation 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 figure measures
- Download: how fast you receive data. It’s what counts for watching video, browsing or downloading files.
- Upload: how fast you send data. It matters for video calls, uploading photos to the cloud or working with large files.
- Latency (ping): the time a message takes to go and come back. It decides whether a game or a call runs smoothly, more than speed does.
- Jitter: how much that latency varies. A stable connection varies little.
Megabits are not megabytes
Providers sell speed in megabits per second (Mbps), but files are measured in megabytes (MB), and a byte is eight bits. A 600 Mbps connection downloads at most 75 MB per second: a 4 GB film takes just under a minute, not seven seconds.
What speed do I 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 good latency |
| Household with several people online | 100 Mbps or more |
For most households, above about 100 Mbps the difference stops being noticeable day to day: what you notice is latency and stability.
If the speed comes out low
- Try with a cable. If it’s fine by cable and poor over Wi-Fi, the problem is the Wi-Fi, not the line.
- Move closer to the router or avoid thick walls. The 5 GHz band is faster but reaches less far than 2.4 GHz.
- Restart the router if you haven’t for a long time.
- Repeat the test at another time. At evening peak times, some networks get congested.
- If by cable and at different times it’s still well below what you pay for, save screenshots of the test and complain to your provider.
Privacy
The test runs between your browser and Cloudflare’s measurement servers. Solvemis doesn’t receive or store your results: they’re calculated and shown in your own browser. Cloudflare, like any server, receives the test requests; you can read the details in our privacy policy.
Frequently asked questions
Why do I get a lower speed than the one I pay for?
Usually the bottleneck is at home: the Wi-Fi, an old router or a device that can't handle more speed. Also, offers state maximum "up to" speeds, and part of the capacity goes on managing the network itself. To check your line, repeat the test with the computer connected by cable.
What latency is good?
Below 20 ms is excellent for online gaming and video calls. Between 20 and 50 ms isn't noticeable in normal use. From 100 ms, noticeable delays start in calls and games.
What is jitter?
It's how much latency varies from one measurement to the next. A stable connection has jitter of a few milliseconds. If it's high, video calls cut out or voices break up even if the speed is good.
Why does it give a different result from other tests?
Each test measures against different servers with different methods. This one does it against the Cloudflare data centre closest to you; others choose servers on your provider's network, which can give slightly higher figures. Differences of 10–20 % between services are normal.
How much data does it use?
Up to about 190 MB on very fast connections, and much less on slow ones, because the test stops using large files when the connection can't handle them. Bear it in mind if you're on mobile data.
Updated October 1, 2026
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