RoughInSizing calculators for the trades

EV charging cost calculator

Pick your car or enter its efficiency, how far you drive and where you charge. You get the cost per mile, per month and per full charge, at your state’s electricity rate, and what the same miles would cost in gas.

Every state’s electricity rateHome, public and fast chargingEV vs gas

Inputs

kWh/100 mi
On the EPA label at fueleconomy.gov. From MPGe: 3,370 ÷ MPGe.
mi/month
¢/kWh
Your bill total divided by the kWh used. With an EV time-of-use plan, use the overnight rate.
kWh
Usable capacity, for the cost of a full charge.
Where you charge
Set these to your own habits; with a charger at home, most charging usually happens there.
$/kWh
Often $0.25–$0.40.
$/kWh
Often $0.37–$0.80; check your network’s app.
mpg
27.2 mpg is the average new car (EPA).
$/gal
U.S. average regular, week of October 5, 2026 (EIA).

Result

Charging cost per month
—

Charging cost by car

At home, at the U.S. average of 18.19¢ per kWh, 1,000 miles a month. MPGe from the EPA’s 2026 ratings; “typical” rows are representative figures for that kind of vehicle.

CarMPGekWh/100 miPer milePer month
Tesla Model 3 Standard RWD (2026)13924.24.4¢$44.11
Tesla Model 3 Premium RWD (2026)13724.64.5¢$44.75
Tesla Model 3 Premium AWD (2026)12826.34.8¢$47.90
Tesla Model Y Standard RWD, 18 in (2026)13824.44.4¢$44.43
Tesla Model Y Long Range RWD (2026)13425.24.6¢$45.75
Tesla Model Y Standard AWD (2026)12726.54.8¢$48.28
Toyota bZ (2026)13125.74.7¢$46.80
Lucid Air Pure RWD, 19 in (2026)14623.14.2¢$41.99
Typical efficient sedan—26.04.7¢$47.29
Typical compact SUV—31.05.6¢$56.39
Typical 3-row SUV—40.07.3¢$72.76
Typical electric pickup—48.08.7¢$87.31

How EV charging cost is worked out

kWh used = miles × kWh per 100 miles ÷ 100 cost = kWh used × price per kWh cost per mile = kWh per 100 miles ÷ 100 × price per kWh

A compact electric SUV using 30 kWh per 100 miles, driven 1,000 miles a month, uses 300 kWh. Charged at home at the U.S. average of 18.19¢, that is $54.57 a month, or 5.5¢ a mile. The same 1,000 miles in a 27.2 mpg gas car at $4.35 a gallon costs $160.

The EPA’s kWh per 100 miles figure is measured from the wall outlet, so it already includes the energy lost while charging. The number on the car’s own trip screen is usually lower because it leaves those losses out.

Home, public and fast charging cost very different amounts

  • Home. You pay your electricity rate, often less on an overnight EV plan. This is where most of the savings come from.
  • Public Level 2. Often $0.25 to $0.40 per kWh, sometimes billed by the hour, and some workplaces and stores offer it free.
  • DC fast charging. Often $0.37 to $0.80 per kWh, and some networks add session or idle fees. A car that only fast charges can cost as much per mile as an efficient gas car.

Prices vary by network, state and time of day, so put in what you actually pay.

What does it cost to charge a Tesla?

A 2026 Tesla Model Y Long Range RWD is rated at 134 MPGe, about 25.2 kWh per 100 miles. At the U.S. average home rate that is 4.6¢ a mile, or $45.75 for 1,000 miles. Tesla does not publish usable battery capacity, so for a full charge enter the figure for your car in the battery field.

EV charging cost by state

Home charging only, 30 kWh per 100 miles, 1,000 miles a month, at each state’s average residential rate for January to July 2026. Savings are against a 27.2 mpg car at the national average of $4.35 a gallon; gas prices also vary by state.

StateRatePer monthPer mileSaved vs gas
Hawaii46.3¢$13913.9¢$21.23
California33.2¢$99.7510.0¢$60.32
Massachusetts30.1¢$90.429.0¢$69.65
Maine30.0¢$89.979.0¢$70.10
New York29.4¢$88.148.8¢$71.93
Rhode Island29.2¢$87.668.8¢$72.41
Connecticut28.0¢$83.918.4¢$76.16
Alaska27.1¢$81.278.1¢$78.80
New Hampshire26.8¢$80.378.0¢$79.70
District of Columbia24.7¢$73.987.4¢$86.09
New Jersey24.0¢$71.947.2¢$88.13
Vermont23.9¢$71.857.2¢$88.22
Michigan21.5¢$64.596.5¢$95.48
Maryland21.3¢$63.906.4¢$96.17
Pennsylvania21.0¢$63.126.3¢$96.95
Illinois19.2¢$57.665.8¢$102
Wisconsin19.0¢$57.005.7¢$103
Ohio18.7¢$56.105.6¢$104
Delaware17.9¢$53.585.4¢$106
Indiana17.0¢$51.125.1¢$109
Virginia16.8¢$50.495.0¢$110
Colorado16.7¢$50.165.0¢$110
Alabama16.5¢$49.625.0¢$110
Minnesota16.2¢$48.754.9¢$111
Texas16.1¢$48.184.8¢$112
South Carolina15.9¢$47.794.8¢$112
West Virginia15.5¢$46.414.6¢$114
Arizona15.4¢$46.324.6¢$114
Georgia15.4¢$46.204.6¢$114
Oregon15.4¢$46.204.6¢$114
Florida15.3¢$45.904.6¢$114
Kansas15.2¢$45.634.6¢$114
Mississippi15.2¢$45.574.6¢$115
New Mexico15.1¢$45.244.5¢$115
North Carolina14.9¢$44.824.5¢$115
South Dakota14.5¢$43.504.3¢$117
Washington14.4¢$43.204.3¢$117
Kentucky14.3¢$42.814.3¢$117
Iowa14.2¢$42.604.3¢$117
Missouri14.0¢$41.884.2¢$118
Montana13.9¢$41.854.2¢$118
Wyoming13.9¢$41.854.2¢$118
Tennessee13.9¢$41.614.2¢$118
Arkansas13.6¢$40.834.1¢$119
Oklahoma13.6¢$40.744.1¢$119
Nevada13.5¢$40.594.1¢$119
Louisiana13.3¢$40.054.0¢$120
Utah13.2¢$39.483.9¢$121
Idaho13.0¢$38.883.9¢$121
Nebraska12.9¢$38.703.9¢$121
North Dakota12.4¢$37.083.7¢$123

Sources: electricity rates, U.S. EIA Electric Power Monthly Table 5.6.B; gasoline, EIA weekly retail price, October 5, 2026; average new-car fuel economy, EPA Automotive Trends Report (model year 2024); EV efficiency, EPA ratings at fueleconomy.gov. For the circuit a home charger needs, see the breaker size calculator.

Questions

How much does it cost to charge an electric car?

At the U.S. average home rate of 18.19¢ per kWh, a typical EV using 30 kWh per 100 miles costs about 5.5¢ a mile, or $54.57 for 1,000 miles. A full charge of a 75 kWh battery at home is about $13.64, and roughly $27.75 to $60.00 at a DC fast charger.

How do I calculate EV charging cost?

Multiply the miles you drive by the car's kWh per 100 miles, divide by 100, and multiply by your price per kWh. 1,000 miles at 30 kWh per 100 miles is 300 kWh; at 18¢ that is $54.

Is charging an EV cheaper than gas?

At home, almost always. At the national averages, home charging costs about 5.5¢ a mile against 16.0¢ for a 27.2 mpg gas car at $4.35. Relying mostly on DC fast chargers can close most of that gap.

How much does it cost to charge a Tesla at home?

A 2026 Model Y Long Range RWD (134 MPGe, about 25.2 kWh per 100 miles) costs about 4.6¢ a mile at the U.S. average home rate, roughly $45.75 a month for 1,000 miles.

How much does an EV add to my electric bill?

About 300 kWh a month for 1,000 miles in a typical EV, which is $54.57 at the U.S. average rate. The average U.S. home uses about 863 kWh a month, so it is roughly a third more electricity.

What is an eGallon?

The cost of the electricity needed to drive an EV as far as a comparable gas car goes on one gallon. The calculator shows it for your car, rate and comparison mpg, so you can compare it directly with the price at the pump.

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