Home Energy Cost Comparison Calculator
Compare annual energy costs for different heating, cooling, and water heating systems — and see how much you could save by switching.
Your Current Setup
Electric: $0.28/kWh · Gas: $1.6/therm
Select your current systems and click Calculate to see your annual energy costs and potential savings.
How This Calculator Works
Energy Rates
Uses average utility rates by state from EIA 2024 data. Your actual rate may vary.
System Efficiency
Heating calculated from AFUE/COP ratings. Water heating from Energy Factor (EF/UEF).
Home Size
Scales energy use based on square footage relative to a 2,000 sq ft baseline.