Free tool

PoE Switch Power Budget Calculator UK 2026

Enter your cameras and devices. We'll calculate total wattage needed, recommend the right PoE switch, and show exact Amazon links.

1. IP Cameras

802.3af (15.4W) cameras — basic 1080p/4MP Most Reolink, Hikvision turret/bullet cameras

802.3at (30W) cameras — PTZ or high-res PTZ, 4K with IR, or motorised cameras

802.3bt (60W+) high-power devices High-end PTZ or multi-sensor cameras

PoE access points / WiFi 6 APs

PoE VoIP phones or other

Extra wattage buffer (recommended 20-30%) 25%

👆 Enter your devices above, then click Calculate to see total power needed and recommended switches.

Always leave 20-30% headroom. PoE switches have a total power budget (e.g. 65W, 130W, 250W). Exceeding it causes random disconnects.

8× 1G + 2× SFP. Great for small 4-6 camera setups.

8-port managed. Ideal for 6-10 cameras + APs.

16-port, great for larger installs with UniFi ecosystem.