Cooling Load Estimator
Estimate cooling load, equipment tonnage, ventilation impact, and safety margin.
Open ToolHVAC Airflow Calculators
Airflow, CFM, duct, kitchen hood, exhaust, cooling load, and chilled-water calculators for HVAC planning.
Duct Sizing & Velocity Checker
Check duct velocity, equivalent diameter, airflow density, and noise-risk level.
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Airflow & CFM Calculator
Compare airflow by ACH, occupancy, cooling tons, and design margin.
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Chilled Water Pipe Sizing Tool
Calculate chilled water flow, pipe velocity, and pressure-loss warning.
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Exhaust Fan Sizing Calculator
Estimate exhaust fan capacity from room volume, ACH, equipment count, and margin.
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TR to CFM Calculator
Convert cooling tons to supply airflow using CFM per ton, ventilation, and margin.
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kW to BTU Calculator
Convert kW to BTU/h, refrigeration tons, kcal/h, and equivalent cooling capacity.
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Kitchen Hood CFM Calculator
Estimate kitchen exhaust hood airflow from hood size, capture velocity, exposure, and margin.
Open ToolHow to use this collection
Start with the calculator closest to the project question, load the sample data, then replace values with your project assumptions. Use warnings and methodology notes to decide what needs formal verification before procurement, authority submission, or construction.