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Free Tool · HVAC

Chiller & Cooling Tower Calculator

Estimate the chiller capacity, matching cooling tower, water flow rates and power for your building's cooling load — the central-plant numbers HVAC engineers need first. Adjust the inputs, then get an engineered design.

Your cooling load

300 TR

Uses standard ratios — chilled water 2.4 GPM/TR, condenser water 3 GPM/TR, cooling tower ~1.25× chiller TR. Plant selection also considers part-load (IPLV), redundancy and pumping.

Recommended chiller
Cooling tower
Chilled water flow
Condenser water flow
Chiller power (approx)
Plant config

Get an engineered chiller plant design — free

Our HVAC engineers will design the chiller plant, cooling towers, pumping and controls for your project. We'll attach the estimate above automatically.

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Indicative estimates only — not a binding design. Actual plant sizing depends on the detailed heat load, diversity, IPLV efficiency and redundancy strategy.

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