Find out what an appliance may cost to run. Adjust watts, hours, quantity and your own electricity price to see daily, monthly and annual estimates.
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Planning estimate — not a final quote
Electricity is billed in kilowatt-hours (kWh). Multiply device power in watts by hours of operation and divide by 1,000. A 100 W appliance running for five hours uses about 0.5 kWh. Multiply by the number of identical devices when applicable.
Multiply kWh by the all-in variable price per kWh from your electricity bill. Taxes, network charges and tariff structure can vary. This calculator does not add standing charges, subscriptions or fixed grid fees, and is intended for comparing usage rather than predicting a whole bill.
A thermostat-controlled heater, refrigerator or variable-speed computer rarely uses its nameplate power continuously. Actual consumption depends on cycling, settings and use. For a more accurate estimate, measure energy with a suitable electricity meter.
A 1,000 W heater running for three hours a day uses 3 kWh/day. At €0.25 per kWh that equals €0.75 per day, €22.50 for 30 days and approximately €273.75 for 365 days, assuming uninterrupted daily usage at full power.
No. It estimates usage-dependent cost only.
The result uses the currency selected in the calculator; enter a matching price per kWh.