Simple, reliable calculators for electricity, appliances, heating, cooling, EV charging, and everyday utility bills.
Every calculator gives a clear daily, monthly, and yearly estimate—plus practical ways to improve the result.
Enter your monthly electricity use, local rate, and utility fees to estimate your total bill before taxes.
Open calculator →Use wattage, daily runtime, and your local electricity rate to see an appliance’s daily, monthly, and yearly operating cost.
Open calculator →Calculate how much a central, window, or portable air conditioner may add to your electric bill.
Open calculator →Estimate the cost of a 750W, 1,000W, 1,500W, or custom electric space heater.
Open calculator →Calculate one charging session, monthly home charging expense, and electricity cost per mile.
Open calculator →Use your bill, local rate, sun hours, and target coverage to estimate a preliminary home solar system.
Open calculator →Enter annual energy use from the EnergyGuide label and your electricity rate.
Open calculator →Estimate what an electric dryer costs per load, month, and year.
Open calculator →Use heating-element wattage, active runtime, and your rate to calculate water-heating cost.
Open calculator →Calculate how pump wattage, schedule, season length, and electricity price affect pool cost.
Open calculator →Calculate the cost of running a room or whole-home dehumidifier.
Open calculator →Estimate daily, monthly, and annual electricity cost using gaming and idle power.
Open calculator →No account, complicated spreadsheet, or hidden assumptions.
Pick the appliance, bill, or system you want to estimate.
Add wattage, hours, and your electricity rate.
Review daily, monthly, and annual totals.
State guides help you start with a relevant residential average, then replace it with the exact rate from your bill.
Explore state electricity costs →Explore heating, water, kitchen, electronics, pumps, and comparison tools built around your own usage and rates.
Estimate washer electricity cost per load, month, and year from cycle energy, laundry frequency, and your local rate.
Open calculator → Kitchen calculatorEstimate dishwasher electricity and water cost per cycle, month, and year.
Open calculator → Cooking calculatorCalculate the cost of preheating and running an electric oven for each meal, month, and year.
Open calculator → Cooking calculatorEstimate electric coil, radiant, or induction cooktop cost from burner power and cooking time.
Open calculator → Cooking calculatorCalculate microwave electricity cost per use, month, and year using input watts and minutes.
Open calculator → Cold storage calculatorConvert freezer EnergyGuide annual kWh into monthly, annual, and five-year operating cost.
Open calculator → Electronics calculatorEstimate television viewing and standby electricity cost per month and year.
Open calculator → Fan calculatorEstimate ceiling-fan electricity cost by speed, daily hours, number of fans, and local rate.
Open calculator →Learn how tiered electricity rates price usage in blocks, calculate a bill correctly, compare marginal and average prices, and test ways to avoid expensive upper tiers.
Separate fixed utility charges from variable energy costs, calculate an effective electricity price, and compare bills or efficiency projects without misleading averages.
Estimate refrigerator electricity cost from EnergyGuide data or measured kWh, understand age and operating conditions, and evaluate replacement savings realistically.