Server Room BTU / UPS Sizer

Size a small server closet's cooling and UPS load.

Servers

Watts per server

Network gear (W)

PDU / UPS loss (%)

Safety factor (%)

Room area (sq ft)

Raw IT load

2450 W

BTU/hr (with safety)

11536

Tons of cooling

0.96

sq ft per ton

Note

r/sysadmin recommendation: target 80–100 sq ft/ton for a sealed closet.

About this tool

Sum server watts + network gear, add PDU/UPS loss, and apply a safety factor to get BTU/hr and tons of cooling. Targets r/sysadmin 'How do you estimate power draw for your racks?' and the closet-cooling thread.

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