PoE Power Budget Calculator
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Electrical & Electronics

PoE Power Budget Calculator

Plan switch power and port capacity for PoE devices, with reserve and per-port checks.

01

Your inputs

Enter power allocated at the switch (PSE), including cable loss, rather than device input power. Presets are maximum PSE allocations. Check the switch's available budget and supported PoE types.

02

Your results

Total allocated power
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Budget after reserve
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Remaining power
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Used ports
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Remaining ports
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Power reserve
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Formula—

How to use this tool

  1. Switch PoE budget · PoE ports · Per-port limit · Power reserve
  2. Add device · Switch power per device (PSE) · Quantity
  3. Your results · Formula · Print results