Internet speed test
Press GO and the test measures your ping, jitter, download speed and upload speed in Mbps in about 30 seconds, on a live speedometer. It uses random data served from our server in France, and nothing is stored. Pause other downloads while you test for the most accurate result.
- ✅ Free
- 🔒 No sign-up
- 📱 Works on mobile
- ⚡ Instant results
🔒 Everything runs in your browser. Your data and files never leave your device.
How to read your speed test results
- Download speed: how fast data reaches you. It matters for streaming video, loading pages and downloading files.
- Upload speed: how fast you send data. It matters for video calls, sending photos, cloud backups and live streaming.
- Ping: the round-trip time to the server, in milliseconds (ms). The lower, the more responsive your connection feels.
- Jitter: the average difference between consecutive pings. High jitter causes choppy audio on calls and stutter in games.
Internet providers advertise speeds in Mbps (megabits per second). To get megabytes per second, divide by 8: 80 Mbps is about 10 MB/s.
\[ \text{speed (Mbps)} = \dfrac{\dfrac{\text{bytes received} \times 8}{\text{time (sec)}}}{1{,}000{,}000} \]
How much speed do you need
| Activity | Recommended download speed |
|---|---|
| Browsing, email, social media | 3 Mbps |
| Video calls (Zoom, Teams, FaceTime) | 5 Mbps, with at least 3 Mbps upload |
| HD video streaming | 8 Mbps |
| Online gaming | 15 Mbps and ping under 60 ms |
| 4K video streaming | 25 Mbps |
| Household of 4 online at once | 100 Mbps or more |
These figures are for one activity at a time. If several people share the connection, add them up.
Run a Wi-Fi speed test and an internet speed test
This test measures the real speed between your device and our server. If you are on Wi-Fi, you get the Wi-Fi speed of the room you are in, not just your line speed. To compare, run one test next to the router, another where you work, and a third over an Ethernet cable if you can. The gap between Wi-Fi and cable tells you whether the problem is your line or your Wi-Fi.
The dial uses a non-linear scale (0, 5, 10, 50, 100, 250, 500, 1,000 Mbps) so both slow and very fast connections stay readable. In each phase, the first seconds are ignored (the connection is still ramping up) and several parallel streams are used to fill the line.
Tips for an accurate test
- Pause downloads, updates and other heavy tabs while the test runs.
- If you can, plug in with an Ethernet cable. Wi-Fi often loses 30 to 50 percent of your speed depending on distance and walls.
- Turn off any VPN: it adds delay and caps speed.
- Run the test two or three times at different hours. In the evening, when the whole neighborhood is online, speeds can drop.
This test runs against our server in France. Results depend on your line and the route to that server. If you are in the US, expect a higher ping (often 90 to 150 ms) and a result somewhat below your provider's figure, especially above 500 Mbps.
3 real-life examples
An old DSL line
Result: 6 Mbps download, 0.8 Mbps upload, 38 ms ping. HD video (8 Mbps) will buffer and video calls will look poor on your end. Call your provider or check whether fiber is available at your address.
Fiber over Wi-Fi
Your plan says 500 Mbps but the test shows 180 Mbps from the living room. Run it again over Ethernet: if you get 450 Mbps or more, the problem is your Wi-Fi (distance, walls, 2.4 GHz band), not the line.
A ping that ruins gaming
You measure 120 Mbps but an 85 ms ping and 25 ms of jitter. The speed is plenty. Latency is what makes online games unstable. Switch to a cable and stop background downloads.