Data checked October 2026

Electricity Cost Calculators

Your electricity bill is just watts times hours times your rate. These calculators use typical wattage and real-world duty cycles for each appliance and the latest average residential price for every state from the U.S. Energy Information Administration.

Electricity Cost CalculatorPick an appliance or enter its watts, amps or yearly kWh, choose your state, and see the cost per hour, day, month and year — with typical figures for 60+ appliances and the latest EIA price for every state.Electricity Rates by StateThe latest EIA residential electricity price for every state — this month and the Jan–Aug 2026 average — with each state's rank, change from last year, average household bill and what any monthly use costs.Space Heater Cost CalculatorSee what a space heater costs per hour, day, month and heating season at your state's electricity rate — with thermostat cycling, local heating-season length and how it compares with gas, propane or a heat pump.Air Conditioner Cost CalculatorPick window, central or mini-split, size and efficiency rating, and see the cost per hour, in your hottest month and for the whole cooling season — with run hours estimated from your state's cooling degree days.EV Charging Cost CalculatorChoose your EV (EPA efficiency from fueleconomy.gov), miles and charger, and see the monthly cost to charge at home at your state's rate or an off-peak EV plan — plus cost per mile, charging time and savings versus gas at your state's pump price.Refrigerator Cost CalculatorSee what a refrigerator or freezer costs per day, month and year — from ENERGY STAR averages, your EnergyGuide label or a plug-in meter reading — at your state's electricity rate.Clothes Dryer Cost CalculatorWork out what each load of laundry costs to dry — and wash — at your state's electricity rate, how much a heat pump dryer would save, and what a year of laundry adds to your bill.Dehumidifier Cost CalculatorEnter your dehumidifier's capacity and efficiency (or pick ENERGY STAR or federal-minimum values) and see what it costs per day, month and year — nonstop or cycling on a humidistat — at your state's rate.Pool Pump Cost CalculatorPrice your pool pump per day, month and season — variable-speed schedules, single-speed or booster — at your state's electricity rate, and see what switching to variable speed saves.Hot Tub Cost CalculatorEstimate what a hot tub costs to keep hot each month and year from its fill volume, standby rating, water temperature and your state's climate and electricity price.

Quick answers

Common electricity questions, already worked out

Keep planning

Other calculators

Area & Volume Concrete & Masonry Lumber, Decks & Stairs Drywall & Insulation Gravel, Sand & Mulch Paint & Stain Flooring Tile Fencing Roofing & Siding Solar