Work out what any appliance really costs to run per day, month or year.
Work out what any appliance really costs to run per day, month or year.
Enter values above and click Calculate — results will appear here with the formula explained.
Utility bills charge per kilowatt-hour — running 1,000 watts for one hour. Converting appliance wattage into money makes phantom loads visible: a 60 W device idling 24/7 consumes 43.8 kWh yearly, real money multiplied across every gadget in the house.
Nameplate ratings mislead for duty-cycled appliances. A fridge compressor doesn't run constantly — estimate its average draw closer to a third of maximum. Space heaters and EV chargers, conversely, run flat-out and obey nameplate exactly.
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Electricity Cost Calculator: Work out what any appliance really costs to run per day, month or year. Formula: kWh/day = watts ÷ 1000 × hours. Example: A 1500 W heater running 3 h daily at $0.
Utility bills charge per kilowatt-hour — running 1,000 watts for one hour. Converting appliance wattage into money makes phantom loads visible: a 60 W device idling 24/7 consumes 43.8 kWh yearly, real money multiplied across every gadget in the house.
Nameplate ratings mislead for duty-cycled appliances. A fridge compressor doesn't run constantly — estimate its average draw closer to a third of maximum. Space heaters and EV chargers, conversely, run flat-out and obey nameplate exactly.
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A 1500 W heater running 3 h daily at $0.28/kWh: 4.5 kWh/day → about $41/month or $461/year — often shocking enough to change habits.
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