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Electricity Cost Calculator
See what any appliance costs to run. Enter its wattage, how many hours a day you use it, and your electricity rate in cents per kWh.
How it's calculated
Energy (kWh) per day = watts × hours ÷ 1000. Multiply by your rate (cents per kWh ÷ 100) for the daily cost, then by 30 and 365 for monthly and yearly totals. The US average rate is roughly 16–17¢ per kWh.
Frequently asked questions
How do I find an appliance's wattage?
Check the label or nameplate on the appliance or its manual. Many list watts directly, or you can multiply volts × amps.
What is a kWh?
A kilowatt-hour is 1,000 watts used for one hour. It's the unit your utility bills you by.
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