Electricity Cost Calculator
Find out how much it costs to run any appliance.
Appliance Electricity Cost Calculator
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How Appliance Running Cost Is Calculated
Electricity is billed in kilowatt-hours (kWh). This calculator converts an appliance's wattage and daily usage hours into kWh, then multiplies by your electricity rate to estimate the running cost per day, month, and year.
Formula
kWh per day = (Watts ÷ 1000) × Hours used
Find your appliance's wattage on its label or in its manual, and your electricity rate on a recent utility bill.
Frequently Asked Questions
Where do I find my appliance's wattage?
Check the label on the appliance itself, its manual, or the manufacturer's website, it's usually listed in watts (W) or sometimes amps, which you can convert (Watts = Amps × Volts).
Where do I find my electricity rate?
Check a recent electricity bill, it's usually listed as a price per kilowatt-hour (kWh), sometimes called the 'energy charge' or 'unit rate'.
Does this include standby power usage?
No, this only calculates active running cost for the hours you specify. Many devices also draw small amounts of 'phantom' power on standby, which isn't included here.