Text & Web Utilities
Electricity Cost Calculator
Estimate an appliance's electricity cost.
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About the Electricity Cost Calculator
Wondering what a device costs to run? Enter its wattage, hours used per day, and your electricity rate (per kWh) and the calculator returns the daily, monthly, and yearly cost. It's an easy way to spot energy hogs and decide whether an upgrade pays off.
How to use the Electricity Cost Calculator
- 01Enter your wattage, hours per day, and cost per kWh.
- 02Read the result instantly — it recalculates as you type.
- 03Adjust the numbers to model different scenarios.
Frequently asked questions
How is electricity cost calculated?
Energy (kWh) = watts × hours ÷ 1000; cost = kWh × your rate. This tool projects it to daily, monthly, and yearly figures.
Where do I find my kWh rate?
On your electricity bill — it's the price per kilowatt-hour, often around $0.10–0.20 in the US.