// Rack Power & Cooling Calculator Help & guide

Rack Power & Cooling Calculator

Calculate total rack power draw, BTU/hr cooling load, PDU sizing, and circuit breaker requirements. Add devices individually or pick from common server presets.

Power (kW / W) BTU/hr cooling PDU sizing Circuit breakers PUE factor Redundancy (A+B)
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Power Settings Voltage, redundancy, PUE, efficiency
PF
Typical server PSU: 0.90–0.98
×
Includes cooling, UPS, lighting overhead
%
Future growth buffer
Quick Add — Device Presets Common server and network device power ratings
Clicking a preset adds it to your device list below. Watts values reflect typical average load — not peak TDP.
Rack Devices 0 devices · 0 W total
Device / Description Qty Watts each Total W
Cooling & Environment Ambient temp, airflow efficiency, cooling type
CoP
Cooling watts per watt removed
Scale results to your full deployment
Power & Cooling Summary
Total IT Load
0.0
kW
Facility Load (PUE)
0.0
kW incl. overhead
Cooling Required
0
BTU/hr
Cooling Tons
0.0
RT (tons of refrigeration)
With Headroom (20%)
0.0
kW provisioned capacity
0 W used 0 W capacity
Power Breakdown
Raw device watts0 W
Power supply losses0 W
IT load draw0 W
Cooling overhead0 W
PUE overhead (×1.4)0 W
Circuit & PDU Sizing
Draw current 0.0 A
Min circuit breaker 0 A
Recommended PDU rating 0 A
Redundancy model 2N (A+B)
Feed requirement 2 × 30A circuits
Done