HVAC Energy-Savings Calculator

Use the calculator to compare yearly electricity costs to operate air conditioners with different SEER ratings ratings and find out how much money you can save by choosing a high-efficiency system.


  • This calculator was designed to compare existing HVAC units to high-efficiency units without specific SEER rating limits. Assumptions: $0.15 per kWh electrical cost and the seasonal cooling days per ASHRAE standards. These are the maximum savings based on seasonal operating hours. Actual realized savings may be less based on thermostat settings, home heat gain, etc. Calculations based on data provided by energystar.gov.