Streaming Bandwidth Calculator

Estimate aggregate outbound bandwidth and hourly data for multiple simultaneous viewers.

Simultaneous viewersWhole number from 1 to 100000000.Bitrate per streamNumber from 0.000001 to 1000000 Mbit/s.Protocol and capacity overheadNumber from 0 to 500 %.

Use consistent units exactly as labeled. Decimal and scientific notation are accepted for non-integer fields; blanks, commas, fractions and non-finite entries are rejected.

Calculate

Media bandwidth2500 Mbit/s

Planned bandwidth3000 Mbit/s

Planned bandwidth3 Gbit/s

Hourly outbound data1350 GB

The displayed results apply to the default example. Enable JavaScript to calculate other inputs.

How to use this calculator

1. Replace the example values with your own measurements, schedule, prices, or media settings.
2. Keep each value in the unit printed beside its field.
3. Select Calculate and review every result together with the assumptions below.

Formula and method

Media bandwidth = viewers × bitrate per stream. Planned bandwidth adds the overhead percentage. Hourly GB = planned Mbit/s × 3,600 ÷ 8,000.

Calculations run in your browser. Results are hidden whenever an input changes or validation fails, preventing an old answer from being mistaken for the current calculation.

Worked example

Simultaneous viewers = 500; Bitrate per stream = 5 Mbit/s; Protocol and capacity overhead = 20 %. The calculator returns Media bandwidth = 2500 Mbit/s; Planned bandwidth = 3000 Mbit/s; Planned bandwidth = 3 Gbit/s; Hourly outbound data = 1350 GB.

The worked example uses the same default values shown in the interface, so the displayed result and explanation can be checked directly.

Limitations

Viewer concurrency, adaptive renditions, CDN architecture, geographic distribution, burst behavior and provider billing can materially change capacity requirements.

Use the result as a planning estimate. Confirm prices, policies, equipment ratings, units and professional requirements that apply to your situation.

Frequently asked questions

Is this the bandwidth required at every viewer?

No. It estimates aggregate origin or delivery capacity for the entered simultaneous viewers, before considering CDN offload or caching.

Why does the calculator reject my entry?

Each field shows its supported range. Whole-number fields reject decimals, and all fields reject blanks, words, comma-formatted numbers, fractions and non-finite values.

How should I round the result?

Keep extra digits while planning, then round to the precision supported by your inputs, package sizes, billing rules or equipment settings.

Review notes and reference

Reviewed October 4, 2026. The formula was checked against the displayed worked example. The script was tested for defaults, field boundaries, invalid formats, condition-specific errors and recovery after an error. Reference: NIST guidance on bits, bytes, and binary prefixes. Explanations and examples are original.

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