Azure download speed test
Measure download throughput
Regions are tested one at a time with four parallel transfers. Each test uses up to 100 MiB and runs for up to 12 seconds, ending earlier when the data limit is reached.
Sustained speed measures a complete interval of at least five seconds after warm-up, including pauses. Average speed covers the full test. A short test shows a labelled average instead.
Run a free Azure download speed test in your browser. Compare speeds in Mbps across Azure regions using up to 100 MiB per region.
Results appear on this page. To save a file to your device, download a 100 MiB test file.
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Frequently asked questions
How does this download speed test work?
The test uses four parallel downloads and up to 100 MiB per region. Sustained speed is measured over a complete interval after warm-up; real pauses count toward the elapsed time. Short tests show average speed instead. No file is saved to your device.
Why are regions tested one at a time?
Parallel downloads would divide your local connection among several regions and make every result artificially slower. Sequential runs give each region the same opportunity to use the available bandwidth.
How much data does the test download?
The test downloads up to 100 MiB from each selected region. For example, selecting six regions allows up to 600 MiB plus protocol overhead. A stable speed or the time limit can end each test before the full allowance is used.
How can I compare download speeds between Azure regions?
Choose the regions you want to compare and select Start download test. The tool tests regions one at a time and ranks completed results by download speed. Keep the same device and network for repeat runs, and use Export CSV to compare completed measurements.
What do Mbps and MiB/s mean?
Mbps means megabits per second and is comparable to typical internet plan speeds. MiB/s means mebibytes per second and uses binary units. Use the results control to switch units; both views come from the same measured transfer.
Why do results vary between runs?
Internet routing, Wi-Fi quality, VPNs, local resource pressure, regional congestion, browser scheduling, and competing traffic can change throughput. Repeat tests using the same size and regions before making a placement decision.