About the Cooling Calculators
Cooling calculators help HVAC engineers size and evaluate air conditioning and refrigeration equipment. This collection covers sensible, latent, and total cooling loads for an air process, supply airflow sized from sensible and latent loads, a traditional RTU versus Paragon HVAC airflow and cost of ownership comparison, SEER and annual cooling cost, evaporative cooler performance, motor and fan heat gains, altitude density correction, and kW, BTU/hr, and ton conversions. Use them during design to verify that proposed equipment can meet the cooling demand for a given space, or during commissioning to confirm that measured performance matches the design intent. Each calculator applies standard industry formulas so results are consistent with manufacturer ratings and energy code requirements. Whether you are selecting a rooftop unit, evaluating an evaporative cooler, or comparing efficiency ratings across equipment options, these tools provide the quick answers engineers need on the job site or at the desk.