Electricity Bill Calculator

Use this electric bill calculator to turn appliance watts or the kWh on your bill into a cost per day, month and year.

Electricians, HVAC and solar pros: show a customer which appliances are running up the bill.

Bill extrasFixed charge, taxes and surcharges, peak and off peak pricing
Estimated monthly bill
$0
Per day$0
Per week$0
Per year$0

See the bill breakdown
    Quick answer

    Your electricity bill is the kWh you use times your price per kWh, plus any fixed monthly charge and taxes. For a single appliance, watts × hours a day × days ÷ 1,000 gives the kWh: a 1,500 watt space heater run 2 hours a day for 30 days uses 90 kWh, about $16.37 at the US average of 18.19¢ per kWh for January to July 2026. The average US home bought 863 kWh a month in 2024 and paid about $142, while state prices now run from 12.36¢ in North Dakota to 46.28¢ in Hawaii.

    Electricity bill formula

    How to calculate your electricity bill

    Every power bill is kWh times the price per kWh, plus a fixed charge and taxes. The two tabs of this electric bill calculator differ only in where the kWh come from.

    Add up appliances from watts and hoursEnter monthly kWh from your bill
    Energy usedWatts × hours a day ÷ 1,000 = kWh a day, then × days in the month, added across every applianceThe kWh figure printed on your bill
    Energy usage costkWh × rate per kWh. On a time of use plan: peak kWh × peak price + off peak kWh × off peak price
    Fixed chargesThe flat monthly customer or base charge on your bill, the same whether you use 50 kWh or 5,000
    Taxes and surcharges(Energy usage cost + fixed charges) × your tax and surcharge percentage
    Total monthly billEnergy usage cost + fixed charges + taxes; × 12 gives the estimated annual cost

    Worked example: four appliances for 30 days at the US average of 18.19¢ per kWh

    Water heater$76.405,000 W, 2.8 h a day: 420 kWh
    +
    Space heater$16.371,500 W, 2 h a day: 90 kWh
    +
    LED TV$7.07162 W, 8 h a day: 38.9 kWh
    +
    Refrigerator$6.72160 W, 7.7 h a day: 37 kWh
    =
    Monthly cost$106.56585.8 kWh, about $1,279 a year

    No fixed charge or tax here: state average prices already fold the fixed charge in, so add one only when you type the rate from your own bill.

    Use cases

    When to use this electricity bill calculator

    Run it whenever a power bill needs explaining, before it arrives or after it lands.

    • Predicting your upcoming monthly bill: enter last month's kWh, or the appliances you expect to lean on as the season turns, and you get a number to plan around before the utility sends its own.
    • Comparing appliances: put an old fridge and a new one side by side by their watts.
    • Estimating savings from using less: drop the space heater from 4 hours a day to 2, or run the dryer half as often, and watch the monthly cost move. Small changes on the high watt rows matter far more than switching off a phone charger.
    • Planning a household or business budget: the yearly figure from this electric bill calculator drops straight into a spreadsheet.
    • Checking a bill that looks too high: type the kWh from the bill and compare it with the average home in your state in the table below. If your usage is close to normal, the price is the problem; if it is far above, one or two appliances usually explain the gap.
    • Weighing a time of use plan: enter the share of power you use from late afternoon into the evening to see what peak pricing does to the total.
    • Moving to another state: switch the state and the same home costs a very different amount.
    • Electricians, HVAC techs and solar installers: a customer calls about a shocking bill, and this is the fastest way to show them where the kWh go. Walk through the big loads together, print the result, and the conversation turns from complaint to the upgrade that fixes it.

    How this electricity bill calculator works

    Pick an appliance and its typical watts and daily hours fill in; change either to match the label or your habits. Choose your state to load its price, or type your own rate, and the result ranks the appliances that cost the most.

    Appliance costs

    How much electricity do common appliances use?

    Anything that makes heat or cold draws the most. A central AC or a 50 gallon water heater can cost more each month than every light, screen and kitchen gadget in the house put together.

    ApplianceTypical wattsHours a daykWh a monthCost a month at 18.19¢
    Central air conditioner3,000 to 5,000 W6720.0$130.97
    Electric water heater, 50 gallon4,500 to 5,500 W2.8420.0$76.40
    Furnace fan, running nonstop500 W24360.0$65.48
    Hot tub, pump and heater4,700 to 5,800 W1.6252.0$45.84
    Window or room AC1,000 to 1,400 W6216.0$39.29
    Space heater1,000 to 1,500 W290.0$16.37
    Pool pump, half horsepower373 W889.5$16.28
    Upright freezer, ENERGY STAR200 to 240 W7.750.8$9.24
    Electric clothes dryer3,400 to 5,000 W0.450.4$9.17
    Dehumidifier, 30 to 70 pint350 to 720 W2.540.1$7.30
    Oven and cooktop1,250 to 2,500 W0.739.4$7.16
    LED or LCD TV, 45 inch110 to 213 W838.9$7.07
    Refrigerator, ENERGY STAR150 to 170 W7.737.0$6.72
    Dishwasher, ENERGY STAR633 W1.528.5$5.18
    Microwave oven1,500 W0.522.5$4.09
    Desktop computer40 to 120 W8.520.4$3.71
    Ceiling fan65 to 175 W310.8$1.96
    Clothes washer, with hot water425 to 1,000 W0.48.6$1.56
    Laptop computer12 to 50 W65.6$1.02
    LED bulb, 60 W equivalent9 W3.61.0$0.18

    Cost uses the middle of each wattage range over a 30 day month. Pick any of these in the calculator and change the watts or hours to match your own.

    9 W vs 60 W
    An LED bulb that gives the light of a 60 watt incandescent draws about 9 watts, so the same lamp left on costs roughly a seventh as much to run.
    Rates by state

    What is the average electricity rate in my state?

    US homes paid an average of 18.19¢ per kWh from January to July 2026, about 7% more than in the same months of 2025. Your state sets the starting point: the same 863 kWh costs under $107 in North Dakota and nearly $400 in Hawaii.

    Lowest: North Dakota12.36¢per kWh
    US average18.19¢per kWh
    Highest: Hawaii46.28¢per kWh

    Home electricity price, usage and bill by state

    StatePrice, Jan to Jul 2026Average use a month, 2024Average bill, 2024That use at the 2026 price
    Alabama16.54¢1,143 kWh$173.50$189.05
    Alaska27.09¢578 kWh$143.54$156.58
    Arizona15.44¢1,075 kWh$160.24$165.98
    Arkansas13.61¢1,048 kWh$129.13$142.63
    California33.25¢503 kWh$160.86$167.25
    Colorado16.72¢674 kWh$100.57$112.69
    Connecticut27.97¢695 kWh$199.66$194.39
    Delaware17.86¢911 kWh$150.87$162.70
    District of Columbia24.66¢639 kWh$113.23$157.58
    Florida15.30¢1,104 kWh$156.09$168.91
    Georgia15.40¢1,074 kWh$151.25$165.40
    Hawaii46.28¢495 kWh$212.12$229.09
    Idaho12.96¢944 kWh$108.73$122.34
    Illinois19.22¢693 kWh$109.99$133.19
    Indiana17.04¢901 kWh$133.06$153.53
    Iowa14.20¢832 kWh$111.54$118.14
    Kansas15.21¢876 kWh$123.90$133.24
    Kentucky14.27¢1,047 kWh$133.81$149.41
    Louisiana13.35¢1,202 kWh$140.96$160.47
    Maine29.99¢550 kWh$133.60$164.94
    Maryland21.30¢929 kWh$165.87$197.88
    Massachusetts30.14¢570 kWh$167.20$171.80
    Michigan21.53¢618 kWh$119.31$133.06
    Minnesota16.25¢712 kWh$110.06$115.70
    Mississippi15.19¢1,156 kWh$154.83$175.60
    Missouri13.96¢1,001 kWh$129.18$139.74
    Montana13.95¢852 kWh$107.91$118.85
    Nebraska12.90¢956 kWh$110.28$123.32
    Nevada13.53¢930 kWh$139.39$125.83
    New Hampshire26.79¢619 kWh$144.87$165.83
    New Jersey23.98¢662 kWh$128.13$158.75
    New Mexico15.08¢654 kWh$92.88$98.62
    New York29.38¢571 kWh$139.53$167.76
    North Carolina14.94¢1,015 kWh$143.50$151.64
    North Dakota12.36¢1,029 kWh$118.38$127.18
    Ohio18.70¢846 kWh$135.16$158.20
    Oklahoma13.58¢1,079 kWh$132.05$146.53
    Oregon15.40¢882 kWh$129.62$135.83
    Pennsylvania21.04¢817 kWh$145.17$171.90
    Rhode Island29.22¢567 kWh$162.40$165.68
    South Carolina15.93¢1,050 kWh$149.51$167.26
    South Dakota14.50¢994 kWh$127.81$144.13
    Tennessee13.87¢1,154 kWh$143.32$160.06
    Texas16.06¢1,096 kWh$163.72$176.02
    Utah13.16¢774 kWh$94.57$101.86
    Vermont23.95¢574 kWh$125.66$137.47
    Virginia16.83¢1,032 kWh$148.77$173.69
    Washington14.40¢955 kWh$113.68$137.52
    West Virginia15.47¢1,027 kWh$154.76$158.88
    Wisconsin19.00¢645 kWh$110.87$122.55
    Wyoming13.95¢863 kWh$107.65$120.39

    Prices are residential averages that include fixed charges spread over every kWh sold. Pick your state in the calculator to load its price, or type the rate from your own bill.

    $142
    The average US home bill in 2024, for 863 kWh a month. Homes in Louisiana bought the most power at 1,202 kWh a month, and homes in Hawaii the least at 495 kWh, yet Hawaii still had the highest bill at $212.
    13.97¢
    The average price for businesses on commercial rates from January to July 2026. Shops and offices can run this calculator with that rate, or with the rate on their own bill.
    Average electricity costs in the US

    How do electricity costs compare across US regions?

    The Northeast and the Pacific coast pay the most per kWh. The South pays some of the lowest prices but uses the most power, so its bills still land above the national average of $142.

    RegionAreaPrice, Jan to Jul 2026Average bill, 2024Example state price
    NortheastNew England28.86¢$166.48Massachusetts 30.14¢
    NortheastNew York, New Jersey, Pennsylvania24.82¢$138.85New York 29.38¢
    MidwestGreat Lakes states19.08¢$121.66Illinois 19.22¢, Ohio 18.70¢
    MidwestPlains states14.49¢$118.81Missouri 13.96¢
    SouthSouth Atlantic16.03¢$152.04Florida 15.30¢
    SouthAlabama, Kentucky, Mississippi, Tennessee14.87¢$150.89Alabama 16.54¢
    SouthTexas, Louisiana, Oklahoma, Arkansas15.27¢$154.89Texas 16.06¢
    WestMountain states14.83¢$122.20Arizona 15.44¢
    WestCalifornia, Oregon, Washington25.48¢$149.69California 33.25¢
    WestAlaska and Hawaii37.58¢$184.65Hawaii 46.28¢

    Knowing your own price per kWh matters more than the regional figure, since neighbouring states can sit far apart.

    Bill charges

    What are the charges on an electric bill?

    Most bills split into a per kWh energy charge, a per kWh delivery charge, a flat monthly charge and taxes. Add the per kWh parts together and you have the rate to type into the calculator.

    ChargeWhat it pays forTypical figure
    Energy or supplyThe power itself, billed per kWh. In some states a separate retail company sells it.Part of the 18.19¢ US average
    DeliveryThe poles, wires and substations that carry power to the house, also billed per kWh.A 10.82¢ rate at one Oregon utility in 2026: 3.99¢ delivery plus 6.83¢ power
    Fixed or base chargeMetering, billing and keeping the account open. It stays the same no matter how little you use.$5 to $10 a month in most states, close to $18 in New York
    Taxes and surchargesState and local taxes plus program riders set by regulators.Varies by state and city; read the line on your bill
    Time of use pricingSome plans charge more per kWh at busy hours and less overnight, so the same kWh can cost two different amounts.One common California plan prices 4 to 9 PM as peak
    $160
    A bill for 1,000 kWh with a 10¢ energy rate and a 5¢ per kWh delivery charge comes to $150, then a $5 base charge and a $5 fixed delivery charge bring it to $160.
    Bill drivers

    Why is my electric bill so high?

    A high bill comes from a high price, high usage, or both. These are the things that push each one up.

    FactorWhat changes the billTypical effect
    Where you liveFuel mix, grid costs and state rules set the price per kWh.12.36¢ in North Dakota to 46.28¢ in Hawaii
    Rising pricesRates have climbed, so a home using the same kWh as last year pays more.18.19¢ in early 2026, up from 17.01¢ a year before
    Cooling and heatingCentral AC is the largest single draw in most homes, and space and water heating usually take the biggest share of the bill, so summer and winter bills swing with the weather.Central AC draws 3,000 to 5,000 W
    Water heatingA standard electric tank cycles on for a few hours every day, all year.360 to 495 kWh a month for 50 gallons
    Always on loadsA furnace fan set to run nonstop, a pool pump or a hot tub keeps drawing power around the clock.Nonstop furnace fan: 360 kWh a month
    Peak pricingOn a time of use plan, evening use costs more.Enter both prices in the calculator
    Fixed chargeThe same flat amount lands every month, even in a month you barely use power.$5 to $10 in most states

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    Homeowners who just opened a painful power bill phone around for an AC tune up, a heat pump quote, a panel check or a solar consult, and they book with whoever answers first. ServiceAgent picks up each of those calls around the clock, learns what the home needs, puts the visit on your schedule and chases anyone who goes quiet.

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    FAQ

    Frequently asked questions

    Plain answers on kWh, rates, fixed charges and what a normal power bill looks like.

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    How do I calculate my electricity bill?

    Multiply the kWh you used by your price per kWh, add the fixed monthly charge, then add taxes and surcharges. For example, 863 kWh at 18.19¢ comes to $156.98 before any fixed charge or tax.

    What is the average US household electricity usage?

    The average US home bought 863 kWh a month in 2024, a little over 10,350 kWh for the year. Louisiana homes used the most at 1,202 kWh a month and Hawaii homes the least at 495 kWh.

    Why are my electricity bills so high?

    Usually it is the price, the usage or both. The US average price rose from 17.01¢ to 18.19¢ per kWh between early 2025 and early 2026, and cooling, space heating and water heating are the loads that push usage up. Compare your kWh with your state's average in the table above to see which side the problem is on.

    Does the electric bill calculator include taxes?

    Yes. Open Bill extras and enter the tax and surcharge percentage from your bill. It is applied to the energy cost plus the fixed charge, the same way most utilities apply it.

    Can I use this calculator for business electricity bills?

    Yes. Enter your business kWh and the rate on your bill. Businesses on commercial rates paid an average of 13.97¢ per kWh from January to July 2026, lower than the home average.

    What is a kWh in simple terms?

    A kilowatt hour is the energy a 1,000 watt appliance uses running for one hour. A 100 watt device takes ten hours to use the same amount.

    How much does it cost to leave a TV on for 8 hours?

    A 45 inch LED or LCD TV drawing about 162 watts uses roughly 1.3 kWh in 8 hours. At 18.19¢ per kWh that is about 24¢ a day, or $7.07 over a 30 day month.

    How much is 350 units of electricity?

    One unit is one kWh, so 350 units at the US average of 18.19¢ costs $63.67 before fixed charges and taxes. The same 350 kWh costs $43.26 in North Dakota and $161.98 in Hawaii.

    Is $400 for electricity a lot?

    For one month, yes. It is nearly three times the 2024 US average bill of $142, and almost twice the highest state average, Hawaii at $212. At 18.19¢ per kWh, $400 buys about 2,200 kWh, which usually points to heavy air conditioning, electric heat, a pool or hot tub, or a very large home.

    How can I reduce my monthly electricity bill?

    Start with the biggest rows in the calculator, since cutting hours on a high watt appliance moves the bill far more than anything small. Swap old bulbs for LEDs, and on a time of use plan, move laundry and dishwashing out of peak hours.

    Do utility rates vary by state?

    A lot. Home prices from January to July 2026 ran from 12.36¢ per kWh in North Dakota to 46.28¢ in Hawaii, close to four times as much for the same kWh.

    Who worked on this
    Headshot of Shaambhav Shankar
    Written byShaambhav ShankarGrowth and Product Marketing, ServiceAgent

    Leads growth and product marketing for ServiceAgent at SaaS Labs, where he has worked in product marketing since 2020. Writes ServiceAgent's coverage of AI call answering, CRM and home services operations.

    Published by ServiceAgent, the AI front office for home service teams. Estimates only. Your real bill depends on your utility's rate plan, delivery and fixed charges, local taxes, the weather and how long each appliance actually runs. Check your utility's rate schedule for exact prices.