Air Sealing ROI Calculator
Calculate the payback period and return on investment for air sealing your home. Estimate annual energy savings from reduced air leakage.
Free Audit Calculators
3 toolsEnergy audit, blower door, and air sealing ROI calculators. Browse our free audit tools below — no sign-up required.
Blower Door Test (ACH50) Calculator
Calculate air changes per hour at 50 Pascals (ACH50) from blower door test results. Free ACH50 calculator for home energy auditors and inspectors.
Energy Audit Savings Estimator
Estimate total savings from a home energy audit by adding up individual improvement measures. Free energy audit savings calculator for homeowners.