Calculate Every Kilowatt-Hour
Appliance running costs depend on power draw, run hours, duty cycle, and local utility rates. A transparent energy calculation separates marketing promises from actual electric bill impacts.
- •Nameplate wattage to kWh formulas
- •Thermostat cycling & compressor duty cycles
- •US regional EIA electricity rate data
- •EnergyGuide label interpretation
- •Vampire / phantom load mitigation
- US Energy Information Administration (EIA)
- ENERGY STAR
- DOE Office of Energy Efficiency
Appliance Operating Cost Simulator
Simulate real kilowatt-hour consumption and monthly utility impacts using US EIA tariff baselines and compressor duty cycles.
From device nameplate label.
Active operating duration.
US EIA avg: $0.168/kWh.
60-75% for cycling AC/heaters.
Physics Basis: Effective Daily Energy (kWh) = (Watts ÷ 1,000) × Daily Hours × (Duty Cycle ÷ 100). Electricity cost = Effective kWh × Utility Tariff ($/kWh). Non-cycling appliances (fans, HEPA filters) operate at a continuous 100% duty cycle.
Upcoming Editorial Guides for Energy Efficiency
New guides and product comparisons are coming soon. Explore our climate categories and practical home-energy tools while we prepare our first editorial guides.