Home Electricity Cost Calculator
Multiply the kilowatt-hours used by your rate per kWh to get the total electricity cost.
Home Electricity Cost Calculator
Multiply the kilowatt-hours used by your rate per kWh to get the total electricity cost.
Method and assumptions
Energy cost is estimated by multiplying kilowatts by hours used and your electricity rate. The calculation runs in your browser.
- Wattage, hours used, and the electricity rate stay constant for the period.
- Fixed charges, time-of-use pricing, taxes, and changing power draw are excluded unless entered separately.
- For better accuracy, use the appliance label and the rate on your latest utility bill.
Sources and references
Frequently asked questions
Where do I find kWh?
Your utility bill lists total kWh used for the period.
What is a typical rate?
US rates vary widely; $0.12–$0.20 per kWh is common.