Estimate Your PoE Power Budget
Enter the number of powered devices. The calculator uses conservative planning wattages and adds 25% headroom.
Recommended planning budget
240 W+
Estimated connected load: 180 W
Always verify the actual maximum power draw and PoE standard required by each exact device model before purchasing a switch.
Why Leave Headroom?
A switch operating at the edge of its PoE capacity leaves little room for device startup peaks, future additions or model changes. A planning reserve also makes expansion easier.
PoE Wattage Is Only One Requirement
Also confirm the required PoE standard per port, switch uplink capacity, port count and whether high-power devices need PoE+ or PoE++. For a complete deployment, see UniFi network installation.