Internet Speed Test

The test runs entirely in your browser and measures how fast data moves between your device and Cloudflare's global network. It downloads and uploads a series of payloads, times them, and reports your download and upload throughput along with ping (latency) and jitter. Nothing is installed and no account is needed.

Mbps means megabits per second and is how internet plans are advertised. MB/s means megabytes per second and is what you usually see when downloading a file. There are 8 bits in a byte, so MB/s = Mbps divided by 8. For example, a 100 Mbps connection downloads at about 12.5 MB/s. This tool shows both so you do not have to convert.

For general browsing and HD streaming, 25 to 50 Mbps is comfortable. For 4K streaming, video calls, and a few devices at once, 100 Mbps or more is ideal. Households with many devices or heavy uploads (creators, remote work with large files) benefit from 300 Mbps and up. Upload speed matters most for video calls, cloud backups, and streaming to others.

This test measures one connection at a time to one server. Tools like fast.com and speedtest.net open many connections at once, often to several servers in different cities, and add the results together. Much of the time the two land close, and on a good path a single connection will happily saturate a fast line. They separate when the path gets long or lossy: one connection can only have so much data in flight before it has to wait for an acknowledgement, so distance and packet loss cost a single stream far more than they cost twenty. That is why the panel names the edge that answered. Neither number is wrong. A single stream is what one download, one video or one upload actually gets. The aggregate is what your line can carry in total when many things use it at once.

Ping (latency) is how long a small packet takes to make a round trip, measured in milliseconds. Lower is better. Jitter is the variation in ping over time. High ping or jitter causes lag in games and choppy video calls even when your download speed looks high. For gaming, a ping under about 50 ms with low jitter feels responsive.

Several things reduce real-world speed: Wi-Fi distance and interference, an older router, other devices using bandwidth, VPNs, the website or server you connect to, and network congestion at peak hours. For the most accurate reading of your line, test over a wired Ethernet connection close to the router with other devices idle.

Yes. Any speed test has to send and receive real data to measure throughput, so it consumes some of your data allowance, similar to downloading a few large photos or a short video. On a metered or mobile plan, keep that in mind before running repeated tests.

Use a wired Ethernet connection if possible, or sit close to your router. Pause downloads, streaming, and cloud backups on other devices. Close bandwidth-heavy browser tabs. Run the test two or three times and take the best result, since a single run can be affected by momentary congestion.

Yes. It is completely free with no sign-up. The measurement runs in your browser against Cloudflare's edge network; we do not store your results or personal data on our servers. If you turn history on, past runs are kept in this browser only and never uploaded.

Yes, almost always. A VPN routes your traffic through an extra server and encrypts it, which adds latency and typically cuts throughput, sometimes by more than half depending on the VPN server's distance and load. To test your raw connection speed, disconnect the VPN first. To test what you actually get while using the VPN, leave it on; that number reflects real-world performance for that session.

Yes. The test works the same way over cellular data, Wi-Fi, or a phone hotspot, since it only needs a browser and a working connection. Mobile results vary more between runs than fixed broadband because they depend on signal strength, nearby cell tower load, and how many bars you have, so it is worth testing at different times or locations before concluding your carrier is underperforming.