Appliance running cost starts with energy use, not with the purchase price. For some products you can estimate energy from watts and runtime; for others, annual kWh or energy per cycle is a better input because the appliance cycles, changes power level or follows a standardized test procedure.
Choose the input that best matches the appliance
Watts + runtime
Useful for equipment that has a reasonably stable electrical input while operating, especially when you know how many hours it runs.
Annual kWh
Useful when an EnergyGuide label, ENERGY STAR listing or manufacturer document provides estimated annual energy use.
kWh per cycle
Useful for cycle-based appliances such as clothes dryers, washers or dishwashers when you know the energy used for one cycle.
Measured energy
A plug-in energy meter or other measured kWh can be useful when real operation differs from a simple nameplate-power assumption.
EnergyGuide is a comparison tool
The Federal Trade Commission requires EnergyGuide disclosures for specified products using Department of Energy test procedures. The yellow label helps consumers compare energy use or estimated annual operating cost among similar models. Your actual cost still depends on the energy rate and how the product is used in your home.
Official U.S. references
- FTC — EnergyGuide Labeling FAQs
- ENERGY STAR — Product Finder
- EIA — Electricity prices and factors affecting prices
Reviewed: 27 September 2026. Published child guides will appear automatically below this hub after launch.
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