FREE PoE CALCULATOR

Power over Ethernet (PoE) means that both data and power are transmitted through a network cable. But just like water flowing through a pipe, resistance occurs in the cable – which leads to power loss. The longer the cable, the greater the loss.

With this calculator, you can estimate how much power (W) is lost in the cable, the voltage drop (V), how much power actually reaches the device, and whether the installation is sufficient or potentially risky.

Free PoE Calculator