Internet Speed Calculator
Bandwidth and Data Usage Calculator works out Data used and Bandwidth required from Stream bitrate, Hours of use and Concurrent streams. The default figures on this page give data used of 0.144 GB; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
2 steps
- 320 kbit/s for 1 h = 144 MB (0.144 GB)
- Bandwidth required = 0.32 Mbit/s
Its 4 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
2 sources
What the Bandwidth and Data Usage Calculator calculates
Computes the data a stream consumes over a period from its bitrate, and the bandwidth a number of concurrent streams needs.
How to use this Bandwidth and Data Usage Calculator
Enter Stream bitrate, Hours of use, Concurrent streams and Days a month. Data used updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Data used, Bandwidth required and Projected monthly data.
The method follows Bitrate, duration and file size relation: size = bitrate x duration, converting bits to bytes by a factor of 8 and IEC 80000-13, quantities and units for information science and technology.
Research R803-GT-1: 320 kbit/s for an hour example
With Stream bitrate: 320, Hours of use: 1, the calculator returns Data used: 144, Data used: 0.144. This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects Data used, Bandwidth required and Projected monthly data. The inputs you can vary are Stream bitrate, Hours of use, Concurrent streams, Days a month and Monthly data cap.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
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Frequently asked questions
What information do I need for the Bandwidth and Data Usage Calculator?
You need Stream bitrate, Hours of use, Concurrent streams, Days a month and Monthly data cap. The page opens with default figures that give data used of 0.144 GB, so you can see the scale before entering your own.
What does this Bandwidth and Data Usage Calculator show?
It shows Data used, Bandwidth required, Projected monthly data, Share of the data cap used and Hours until the cap is reached, with the working and any warnings for your entries.
Can I check how the Bandwidth and Data Usage Calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.