Electricity Calculators and Tools for Bills, Usage and Cost

• Tool 1Electricity cost calculatorWhat any device costs to run per hour, day, month and year.Open
• Tool 2Electric bill calculatorEstimate a monthly bill from kWh, price and fixed charges.Open
• Tool 3kWh calculatorTurn watts, or amps and volts, into kilowatt-hours and cost.Open
• Tool 4Is my electric bill normal?Compare your bill with your state and your kind of home.Open
• Tool 5Find my electric companyMatch your state and county to the utilities that serve it.Open
• Tool 6Electric company by ZIP codeEnter a ZIP code to see which electric utilities serve it.Open
• Tool 7Texas ESI ID lookupWhere to find your ESI ID, and a format check for the number.Open
• Tool 8Watts to kWh calculatorConvert watts and time to kWh, or kWh back to average watts.Open
• Tool 9Electricity usage calculatorAdd up the kWh and cost of the devices in your home.Open
• Tool 10EV charging cost calculatorCost per mile, month and year for an electric car, with a gas comparison.Open
• Tool 11Appliance cost calculatorPick an appliance, adjust the watts and hours, and see what it costs.Open
• Tool 12Heat pump vs furnace calculatorCompare yearly heating cost for a heat pump, electric furnace and gas furnace.Open
• Tool 13Time-of-use rate calculatorTest whether a time-of-use plan would cost less than a flat price.Open
• Tool 14Fixed vs variable rate calculatorCompare a fixed and a variable plan over the same term.Open
• Tool 15Solar savings calculatorEstimate rooftop solar savings and payback from your own numbers.Open
• Tool 16Electric bill estimator by square feetEstimate a monthly bill from the size of a home.Open

• You want to know what one device costs to run? Use the Electricity cost calculator.
• You want to estimate a whole monthly bill? Use the Electric bill calculator.
• You have watts, or amps and volts, and need kWh? Use the kWh calculator.
• You want to know if your bill is high? Use the Is my electric bill normal?.
• You want to know who your utility is? Use the Find my electric company.
• You want to price a heater, air conditioner or other appliance? Use the Appliance cost calculator.
• You want to add up the devices in your home? Use the Electricity usage calculator.
• You have watts and minutes and want kWh? Use the Watts to kWh calculator.
• You drive an electric car or are thinking of one? Use the EV charging cost calculator.
• You are choosing between a heat pump and a furnace? Use the Heat pump vs furnace calculator.
• You are weighing a time-of-use plan against a flat price? Use the Time-of-use rate calculator.
• You are choosing between a fixed and a variable plan? Use the Fixed vs variable rate calculator.
• You are thinking about rooftop solar? Use the Solar savings calculator.
• You want a quick bill estimate from the size of a home? Use the Electric bill estimator by square feet.
• You know your ZIP code and want your electric company? Use the Electric company by ZIP code.
• You live in Texas and need your ESI ID? Use the Texas ESI ID lookup.

Every calculation happens on your device. We do not send what you type to a server, we do not save it, and we do not ask you to sign up. The state prices that fill in a typical rate come from EIA Form EIA-861, and the home type benchmarks come from the EIA Residential Energy Consumption Survey. The methodology page shows the formulas, and the privacy policy explains what we collect.

The tools give estimates for planning. Your bill depends on your rate plan, the season and how your utility sets charges, so check any result against a recent bill.