Tools & data
Free calculators and state-by-state tables for what electricity costs at home. Every figure is computed from public government data, currently U.S. EIA prices for August 2026, and each page names its source.
How these numbers are madeDownload the data (CSV)
- AC size calculatorHow many BTU your room needs, from the ENERGY STAR sizing chart.
- AC running cost by stateWhat a window AC costs per hour and per month in your state.
- Space heater cost by stateWhat a space heater costs to run in every state, at 1,500 W and 750 W.
- Christmas lights costWhat holiday lights and inflatables cost per night and per season, LED vs incandescent.
- Electric fireplace & oil heater costWhat an electric fireplace or oil-filled radiator costs per hour, heat on or flame only.
- Electric bill by stateThe average monthly home electric bill in every state, summer, winter and over a year.
- Electricity cost by stateEvery state ranked by home electricity price per kWh, with its average bill.
- Engine block heater costWhat a block heater costs per night in every state, left on overnight or on a timer.
- Electricity price change by stateHow much home electricity prices changed in every state over a year.