Electricity Cost Calculator
Estimate the electricity cost of an appliance from its power in watts, hours of use and your price per kWh. Per day, month and year.
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How to use
Use power and duty cycle for estimated loads, per-cycle energy for appliances such as washers, or measured kWh for the most reliable result. Costs are incremental energy charges only.
FAQ
How is the cost calculated?
Choose W × hours × duty cycle, kWh per cycle × cycles, or a measured kWh total. Cost is normalized to a day, 30-day month and 365-day year, then multiplied by your rate.
Which appliances use the most?
Air conditioning, electric heating, EV charging and tumble dryers typically dominate home bills. Use presets to compare.
What price per kWh should I use?
Your latest bill is best. Country presets are dated examples in their local ISO currency; the calculator does not apply exchange rates.
Why does the fridge preset use a duty cycle?
A fridge compressor cycles on and off. Treating its nameplate watts as a continuous 24-hour load overstates usage; measured kWh is more reliable.
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