Math
Electricity Cost Calculator
Calculate how much any appliance costs to run. Enter watts, hours of use per day, and your electricity rate to find the total cost.
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Frequently Asked Questions
How do I find my electricity rate?
Check your electricity bill — it's listed as cents or dollars per kilowatt-hour (kWh). Average US rate is around $0.12–0.16/kWh.
How do I find an appliance's wattage?
Check the label on the appliance, the manual, or search '[appliance name] wattage'. Common examples: LED bulb = 10W, TV = 100W, refrigerator = 150W, AC = 1500W.