Internet Speed Test
Measure download and upload speed, ping (latency) and jitter — and see whether your connection is good enough for 4K video, video calls and online gaming.
Download
–Mbps
Upload
–Mbps
Ping (latency)
–ms
Jitter
–ms
Measures speed to the nearest Cloudflare data center (speed.cloudflare.com); during the test your browser exchanges data, including your IP address, with that server. On fast connections a test can use several hundred MB, so be careful on mobile data. Results vary with Wi-Fi, other devices on your network and time of day.
Guide
Key points
- Measures download, upload, ping and jitter, and tells you what your connection can handle.
- Tests against the nearest Cloudflare data center.
- A test can use several hundred MB on fast connections — mind your mobile data.
What’s measured
- Download: how fast you receive data — streaming, browsing, downloads.
- Upload: how fast you send data — video calls, uploading photos and videos, backups.
- Ping (latency): round-trip time to the server in milliseconds. Lower is better for games and calls.
- Jitter: how much the ping varies. High jitter causes choppy calls and lag spikes.
Speed needed for common uses
- 4K streaming: 25 Mbps download
- Video calls: 4 Mbps down, 3 Mbps up, ping under 150 ms
- Online gaming: 10 Mbps down, ping under 50 ms, jitter under 20 ms
- Large file transfers: 100 Mbps down, 20 Mbps up
For an accurate result
- Use a wired connection or sit close to the router.
- Pause downloads, streaming and backups on other devices.
- Turn off any VPN.
- Test a few times at different times of day.
FAQ
Why is it slower than my plan?
Wi-Fi is normally slower than a cable. If a wired test is still far below your plan, restart the router and contact your provider.
What's a good ping?
Under 20 ms is excellent; under 50 ms is fine for most online games.
How much data does a test use?
It scales with your speed: tens of MB on slow lines, up to several hundred MB on gigabit connections.