Check Internet Speed Test — fast, free & accurate
Measure your download speed, upload speed and ping on any connection: WiFi, 4G, 5G, ADSL, cable, fiber or broadband. No install, no login — just press start.
Recent results (stored on this device)
| Date | Download | Upload | Ping |
|---|
Measurements are made against the Cloudflare global edge network for accuracy anywhere in the world.
What do your speed test results mean?
Three numbers tell the story of your connection — here is what each one means for everyday use.
Download speed
How fast you pull data from the internet, in megabits per second (Mbps). It drives video streaming, web browsing, app downloads and file transfers. For most households, download is the number that matters most.
Upload speed
How fast you send data out — video calls, cloud backups, live streaming and sharing files. ADSL plans often have slow upload, while fiber is usually symmetric (equal up and down).
Ping & jitter
Ping is reaction time in milliseconds — critical for online gaming and calls. Jitter measures how much that time varies; low jitter means a stable, smooth connection.
What is a good internet speed?
Compare your results with what each activity actually needs.
| Activity | Minimum download | Recommended | Ping |
|---|---|---|---|
| Email & web browsing | 1 Mbps | 5 Mbps | Any |
| HD (1080p) streaming | 5 Mbps | 10 Mbps | Any |
| Video calls (Zoom, Teams) | 3 Mbps | 10 Mbps + 3 Mbps up | < 80 ms |
| Online gaming | 3 Mbps | 25 Mbps | < 50 ms |
| 4K streaming | 25 Mbps | 50 Mbps | Any |
| Large downloads & cloud backup | 50 Mbps | 200 Mbps + 20 Mbps up | Any |
| Smart home, 4+ users streaming | 100 Mbps | 300 Mbps+ | < 50 ms |
A speed test for every connection
However you connect, our tool measures it — and here is what typical results look like.
WiFi speed test
Testing over WiFi? Expect 20–60% lower results than wired due to radio interference, distance and router overhead. Sit in the same room as your router on the 5 GHz band for your best WiFi numbers.
4G speed test
4G LTE typically delivers 10–50 Mbps down and 5–20 Mbps up. Stay still while testing, check your signal bars, and pause background apps — moving between towers can swing results a lot.
5G speed test
5G regularly hits 100–1000 Mbps — faster than many home lines. Mid-band gives the best balance; mmWave needs line of sight. Test near a window for your true 5G peak.
ADSL and fiber speed test
ADSL tops out around 10–20 Mbps down with just 1–2 Mbps up. Fiber starts at 100 Mbps and often reaches 1–8 Gbps, symmetric. A fast test shows exactly which one your line delivers.
Check broadband speed
Any always-on connection — cable, DSL, fiber or fixed wireless — counts as broadband. Run this test at different times of day to catch evening congestion your provider won't tell you about.
Fast test, anywhere
The whole test finishes in about 25 seconds and works on any device with a browser — phone, tablet, laptop, smart TV. Bookmark this page and re-test after every router or plan change.
How this internet speed test works
No plugins, no apps — just your browser and honest measurement methodology.
Find the nearest edge server
Your browser connects to the closest point on Cloudflare's network covering 300+ cities, so distance never skews your results.
Measure download & upload
Several parallel streams download and upload data for ~10 seconds each. We exclude the connection ramp-up and average a stable window — the way professionals do.
Report speed, ping & jitter
Latency is measured on every request with sub-millisecond precision, then we summarise everything into simple, shareable numbers.
Tips for an accurate speed test
Follow these before pressing start and your numbers will be trustworthy.
Use a wired connection if possible — ethernet removes WiFi as a variable entirely.
Close streaming, downloads and cloud sync on all devices sharing your network.
Disable VPNs and proxies — they reroute traffic and usually lower speeds.
Run the test 2–3 times at different hours and compare the averages.
Reboot your router before testing if speeds look lower than usual.
Keep your browser tab focused — background tabs can throttle the test.
Speed test FAQ
Everything people ask before and after running the test.
Is this internet speed test really free?
How does the speed test work?
Why is my WiFi speed test result lower than my internet plan?
What is ping and what is a good latency?
What is a good download speed?
Does this speed test work on 4G and 5G mobile connections?
Why do I get different results each time?
Is my data private when I run a test?
Wondering if you're getting the speed you pay for?
Run the free check internet speed test now — it takes about 25 seconds and nothing is installed on your device.
Run the Speed Test