HVAC Calculators

Use these hvac calculators to compare inputs, check formulas, and get faster answers within Construction & Home.

BTU Load Calculator

BTU Load is evaluated from Conditioned Floor Area, Ceiling Height and Climate Zone. The calculation reports Cooling Load, Cooling Tons and Heating Load.

AC Size Calculator

AC Size is evaluated from Room or House Area, Ceiling Height and Room Conditions. The calculation reports BTU/hr Needed, Tons Needed and Recommended Unit Size.