Download
—Mbps
Upload
—Mbps
Ping
—ms
Jitter
—ms
Measure download, upload, ping & jitter
Our speed test measures your internet connection performance by transferring data between your browser and a test server. For the download test, the server sends chunks of data to your browser and measures how quickly they arrive. For the upload test, your browser sends data to the server. The tool also measures ping (the round-trip time for a small packet to travel to the server and back) and jitter (the variation in ping times over multiple measurements).
Understanding your actual internet speed is important for troubleshooting slow connections, verifying that your ISP is delivering the speeds you pay for, and determining whether your connection can handle activities like video streaming, online gaming, or video conferencing. Running the test at different times of day can reveal congestion patterns on your network or ISP.
For the most accurate results, close other browser tabs and applications that use bandwidth, connect via Ethernet instead of Wi-Fi if possible, and run the test multiple times. Keep in mind that your results reflect the speed between your device and the test server, which may differ from speeds to other destinations on the internet.
The test uses JavaScript to download and upload data through your browser using HTTP requests. During the download phase, the server streams data to your browser while measuring throughput over time. During the upload phase, your browser generates random data and sends it to the server. The tool calculates speed in megabits per second (Mbps) by dividing the total data transferred by the time elapsed.
Latency (ping) is the time it takes for a small data packet to travel from your device to the server and back, measured in milliseconds (ms). Lower latency means a more responsive connection. Jitter is the variation in latency over time. High jitter means your connection speed fluctuates, which can cause issues with real-time applications like video calls and online gaming even if your average speed is fast.
Several factors can reduce measured speed: Wi-Fi interference or distance from your router, other devices using your network simultaneously, background downloads or updates on your device, network congestion during peak hours, VPN overhead, or your ISP throttling certain types of traffic. Older hardware, outdated network drivers, or a browser with many extensions can also reduce test performance.
For basic web browsing and email, 5-10 Mbps download is sufficient. HD video streaming requires about 5-10 Mbps, while 4K streaming needs 25 Mbps or more. Video conferencing typically needs 3-5 Mbps both down and up. Online gaming requires relatively low bandwidth (3-6 Mbps) but demands low latency. For households with multiple users and devices, 100 Mbps or more is recommended.
Yes, a VPN adds encryption overhead and routes your traffic through an additional server, which typically reduces measured speeds by 10-30% depending on the VPN provider, server distance, and protocol used. If you want to measure your raw connection speed, disconnect from the VPN first. If you want to know your effective speed while using the VPN, leave it connected during the test.