PoE Budget Calculator

Add camera groups and compare device load plus reserve with a switch or injector PoE budget.

Result

Budget PASS · Port limit PASS

Device load

78 W

Recommended budget

93.6 W

Available budget

120 W

Headroom vs recommended

26.4 W

Nameplate watts are not always worst-case. IR LEDs, heaters, PTZ motors, and startup can draw more. Total switch budget and per-port power limit are different constraints.

How this was calculated

device_load = Σ(quantity × watts). recommended_budget = device_load × (1 + reserve).
Budget PASS when recommended_budget ≤ available switch/injector budget.
Optional per-port limit FAIL if any device watts exceed that port cap.

Limitations

Nameplate consumption is not automatically worst-case. IR, heaters, PTZ, and startup can draw more.
Total PoE budget and individual port power limit are different constraints.

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