NaplesTechPro · Free Planning Tool
PoE Budget Calculator
Plan switch capacity for access points, cameras, phones, controllers, and other powered devices using both expected and maximum load.
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Switch and reserve
Use the PoE budget and per-port output listed for the actual switch—not its total AC power draw.
Example: 120 W
Count usable PoE ports
PSE output rating
20% is a useful planning start
Powered devices
Maximum watts should reflect startup, peak operation, heaters, infrared LEDs, USB loads, or other enabled features.
| Device | Qty | Expected W each | Maximum W each |
|---|
Planning estimate—not an engineering guarantee. Confirm device datasheets, negotiated PoE requirements, cable conditions, switch model limitations, shared PSU behavior, ambient temperature derating, and redundant-power behavior before purchasing or deploying equipment. Actual consumption can vary by configuration and operating state.