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How to Calculate Cooling Capacity of an Air Conditioner

popeye21834
popeye21834
Published July 18, 2025
How to Calculate Cooling Capacity of an Air Conditioner
Ref: Plant Equipment Specification • ISHRAE / ASHRAE Standards MEP Technical Asset

How to Calculate Cooling Capacity : Calculating an air conditioner’s cooling capacity helps you pick the right unit for any space. First, you measure the room’s heat gain from people, lights, and equipment. Then, you add solar and transmission loads through walls and windows. Finally, you apply the standard formula—Cooling Capacity (kW) = Total Heat Gain (kW) ÷ Efficiency Factor—to...

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popeye21834

popeye21834

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Chartered Senior MEP Engineer & Review Board Specialist with extensive design, testing, and commissioning field experience across commercial and industrial infrastructure.

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