Why test internet speed?
An internet speed test tells you whether you receive the speed you pay for, and whether your connection supports what you actually do, such as 4K streaming, video calls, gaming and cloud work.
Free, private internet speed test
Test your internet speed right now
Measure download, upload, ping, jitter and packet loss in seconds, then get an easy-to-understand Internet Fitness Score with plain-language ratings.
- No accounts, no tracking
- Full result in 30 seconds
- Internet Fitness Score
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Live diagnostics
Test your connection speed
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Server: InternetSpeedTest.fit edgeDownload speed
—Mbps
What you receive (streaming and browsing)
Upload speed
—Mbps
What you send (calls, backups, uploads)
Ping
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Jitter
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Packet loss
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IP address
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Server
InternetSpeedTest.fit edge
Connection
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Provider
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Test duration
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Tests run against InternetSpeedTest.fit edge. Results stay in your browser, nothing is stored against an account. Read the methodology
Your Internet Fitness Score
Run a test to turn download, upload, ping, jitter and packet loss into one number you can act on.
Understand your connection
What your speed test results really mean
Short, practical explanations of every metric behind your Internet Fitness Score.
How often should I test?
Monthly for a healthy baseline, plus any time performance drops. Testing at peak evening hours exposes congestion daytime tests never reveal.
Understanding ping and latency
Ping is the round-trip time of a data packet in milliseconds. Under 30 ms feels instant; above 100 ms adds noticeable lag to video calls and competitive games.
Download vs upload speed
Download speed governs what you receive, such as streaming and browsing. Upload speed governs what you send, such as video calls, backups and large file transfers.
What affects internet speed?
Router age, WiFi interference, distance from the router, device limits, VPNs, background downloads and network congestion all reduce real-world throughput.
How to improve slow internet
Compare wired against wireless, restart the router, switch to the 5 GHz band, update firmware and re-test at different times before contacting your provider.
Related guides
Go deeper on internet performance
Plain-language explainers for the questions that come up after every speed test.
Fundamentals
What is Ping?
How latency is measured, what a good ping looks like and how to lower yours.
Fundamentals
What is Jitter?
Why unstable latency ruins calls and games even on a fast connection.
Troubleshooting
Why is my WiFi slow?
Interference, channel overlap, placement and the fixes that actually work.
Troubleshooting
How to improve internet speed
A practical checklist from router placement to DNS and firmware.
Use cases
Internet speed for gaming
The latency, jitter and bandwidth targets competitive play really needs.
Use cases
Best internet speed for Netflix
Bandwidth per stream for SD, HD and 4K, as well as how many streams your line handles.
Fundamentals
Mbps vs MB/s
The eight-times difference that explains why downloads look slower than your plan.
Connections
Fiber vs Broadband
Latency, symmetry and reliability compared across fibre, cable and DSL.
FAQ
Frequently asked questions
Answers to the questions people ask most about internet speed, latency and connection quality.