Power over Ethernet
PoE budget calculator
Add your access points and cameras, then check whether the switch has enough total power and sensible safety headroom.
Your inputs
Calculated result
95 W requested
The devices may draw up to 95 W from a 120 W budget, leaving 25 W headroom.
Switch budget
120 W
Headroom
25 W
Headroom percent
21%
How to use this result
- • Use maximum device power, not typical draw, for conservative planning.
- • Keep roughly 20% headroom for startup peaks, environmental variation, and future devices.
- • Total wattage does not replace checking the PoE standard required by each port.