Understand your electricity bill
See what your appliances actually cost to run.
Pick your state, choose an appliance, and get a simple estimate using the latest available residential electricity-price data from the U.S. Energy Information Administration.
Quick calculator
Electricity cost calculator
How we calculate it: watts ÷ 1,000 × hours used × electricity price.
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Is an EV cheaper to fuel than a gas car?
Compare home charging and gasoline for the same number of miles using your own electricity rate, MPG, and gas price.
Electricity rates by state
See the latest residential price where you live.
Browse all 50 states and DC, then jump into a calculator with your state rate already selected.
Electricity guides
Understand the numbers behind the calculator.
Learn how to read an electric bill, what a kilowatt-hour means, why state prices differ, which home loads matter most, and how EV charging costs work.
Why this helps
Turn watts into dollars.
Appliance labels tell you watts. Power bills tell you kilowatt-hours. We connect the two so you can see the cost in terms that are easier to use.
About the rate
Use your own bill for the best estimate.
The state figure is an average delivered residential price from EIA. Your actual utility rate, fixed charges, taxes, and time-of-use pricing can make your bill different.