Appliance electricity cost
Calculate electricity consumption (kWh) and running cost for any appliance from its wattage and daily operating hours.
Open calculatorStandby power cost
Energy (kWh) = watts × hours / 1,000 (a full year is 8,760 hours). Multiplies by your electricity tariff to show what routers, set-top boxes, smart speakers and standby displays cost over a year.
W
Electricity cost
63 zł
Energy consumed
70.1 kWh
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An 8 W continuous draw over a full year uses ~70 kWh — roughly half the annual consumption of a modern fridge.
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Educational estimate only. Not medical, tax, legal or financial advice.