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Electricity Calculator
Estimate electricity consumption and energy cost for an appliance or group of identical devices.
Your estimate
Enter measurements and select Calculate.
How this estimate works
Energy = input watts ÷ 1,000 × hours/day × days × devices × duty cycle. Daily cost uses the same daily energy and rate. Use actual input power, not cooling/heating output. Rate is editable; the starting value is illustrative. Excludes fixed fees, taxes, demand charges, and time-of-use rate changes. Duty cycle covers cycling within the entered operating hours.
U.S. EIA · electricity and kilowatthours
Values are rounded only for display. Calculations stay on this device. No signup required.
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