EV Charging Cost Calculator
The car's consumption, your rates, and where you plug in
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- General mathematical model
- Scope and limitations
- Educational estimate only. Confirm the assumptions, current rules, fees, and rounding that apply to your situation before making a decision.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the miles you drive a year and your car's consumption in kWh per 100 miles, which is on its EPA label and on fueleconomy.gov.
- 02
Enter the share of your charging done at public DC fast chargers and the price per kWh you pay there. Paren's Q2 2026 US average was 53.8 cents, excluding free chargers.
- 03
If your utility has a time-of-use plan, enter its off-peak rate, the share of home charging you do in the off-peak window and how many hours the window lasts. Leave the rate at 0 if you pay one flat rate.
- 04
Enter what a Level 2 charger would cost installed and the share you would charge in public without one, on a standard outlet alone.
- 05
Read the monthly cost and cost per mile, then the table of charging setups and the Level 2 payback.
Formula
Energy a year = miles a year × kWh per 100 miles ÷ 100 × (1 + any added loss). Home price per kWh = the off-peak rate × the share charged off-peak + the standard rate × the rest, where the off-peak share can be no larger than what the charger adds in the off-peak window (miles an hour × hours in the window) divided by the miles a night you charge at home. Blended price = home price × the home share + public price × the public share. Charging cost a year = energy × blended price; a month is that ÷ 12 and a mile is that ÷ miles a year. The standard-outlet case uses the larger of your public share and the public share you would need without a Level 2 charger, at about 5 miles an hour. Level 2 payback = the installed cost, less any credit, ÷ (the outlet case's cost a year − your cost a year).
Example
A car rated at 30 kWh per 100 miles is driven 13,500 miles a year, so it uses 4,050 kWh. Twenty percent is charged at public fast chargers at 53.8 cents a kWh; the rest at home, 80% of it off-peak at 12 cents and the remainder at the EIA's June 2026 average of 18.34 cents, which averages 13.3 cents. The blended price is 21.4 cents a kWh, so charging costs $866 a year, $72 a month or 6.4 cents a mile, split $430 at home and $436 in public. Without a Level 2 charger the driver would charge 35% in public, which would cost $1,112 a year, so a $1,700 installation saves $246 a year and pays back in 6 years 11 months. A standard outlet would add about 40 miles in the 8-hour off-peak window, against the 24 miles a night of home charging the driving needs, or 4.8 hours on the outlet.
Definitions
- kWh per 100 miles
- How much electricity a car uses to travel 100 miles. The EPA label figure is measured at the wall and includes charging losses.
- Level 1 charging
- Charging from a standard 120-volt household outlet, adding about 5 miles of range an hour according to the Department of Energy.
- Level 2 charging
- Charging at 240 volts at home, or 208 volts at many commercial sites, adding about 25 miles of range an hour.
- DC fast charging
- Public high-power charging that feeds direct current to the battery, adding about 100 to 200 or more miles of range in 30 minutes, at a much higher price per kWh.
- Time-of-use rate
- A utility plan that charges less for electricity during off-peak hours, usually overnight, and more at peak times.
Good to know
The label figure already includes charging losses
Every new electric car sold in the US carries an EPA label that states its efficiency in miles per gallon equivalent and in kilowatt-hours per 100 miles. The second figure is the one that matters for cost, because electricity is billed by the kilowatt-hour. What is easy to get wrong is what that figure measures. The EPA says its MPGe values include charging losses: the test assumes Level 2 AC charging and accounts for the energy lost in the charging cable and in the car's on-board charger, which moves the measurement from the car to the wall outlet to better represent what drivers pay. So the label's kWh per 100 miles is already a wall-to-wheels number. Adding a separate percentage for charging losses on top counts the same losses twice and overstates the cost. This page therefore starts its added-loss field at zero and treats the EPA label as the default input. The field is there for a consumption figure that leaves losses out. The number on a car's own dashboard or trip computer may be measured differently and can differ from the label, so if you use a dashboard figure, find out how your car reports it before deciding whether to add losses. Real-world consumption also moves with conditions no label can capture. Cold weather and cabin heating, sustained highway speeds, heavy loads and roof racks can all raise it, sometimes substantially. A driver who consistently sees higher consumption than the label should enter their own figure. On the example, a car rated at 30 kWh per 100 miles and driven 13,500 miles a year uses 4,050 kWh at the wall. A ten percent change in consumption changes the yearly cost by about ten percent, which on the example's $866 is roughly $87. Consumption is worth getting right, but, as the next section shows, where you charge matters more.
Home, off-peak and public: why the mix decides the bill
The same car driven the same miles can cost several times as much to charge depending on where it is plugged in. On the example, 4,050 kWh a year costs $743 all at home at the EIA's June 2026 average residential price of 18.34 cents a kWh, $486 all at an off-peak rate of 12 cents, and $2,179 all at public DC fast chargers at 53.8 cents. The example driver's actual mix, 80% at home, mostly off-peak, and 20% at public fast chargers, lands at $866 a year, or 6.4 cents a mile. Public fast charging costs more because the operator has to recover the cost of high-power equipment and grid connections, and because it sells speed and convenience. Paren's report on US fast charging for the second quarter of 2026 put the average price at 53.8 cents a kWh, excluding free chargers, ranging from 42.8 cents in Nebraska to 85.6 cents in Hawaii. In the example a public kilowatt-hour costs about 4.1 times a home one, so every ten percentage points of charging moved from public to home saves about $164 a year. Home prices vary too. The EIA average is a national figure; residential rates differ widely between states and utilities, and your own bill shows your rate once delivery charges are included. Many utilities offer time-of-use or EV-specific plans that charge less overnight. If yours does, enter its off-peak rate and the share of home charging you can shift into that window. The page limits that share to what your charger can actually add during the window: about 5 miles of range an hour on a standard outlet and about 25 on a Level 2 charger, according to the Department of Energy. For drivers without home charging, such as many apartment renters, the public price is the whole story, and it can erase much of an electric car's running-cost advantage, which the gas-versus-electric comparison weighs against the purchase price.
Does a Level 2 charger pay for itself?
A Level 2 charger runs at 240 volts at home and adds about 25 miles of range an hour, against about 5 miles an hour from a standard 120-volt outlet, according to the Department of Energy's Alternative Fuels Data Center. The speed difference is obvious; the savings are less so, because a kilowatt-hour from your panel costs the same whichever home charger delivers it. A Level 2 charger saves money only when it changes where or when you charge. The main way it does that is by reducing public charging. A driver who can recover a day's miles overnight on a standard outlet gains little. On the example, the driver needs about 24 miles a night from home charging, which takes about 4.8 hours on an outlet, and an outlet can add roughly 40 miles in an 8-hour off-peak window. If that driver would still charge 35% of the time in public without a Level 2 charger, against 20% with one, the charger saves $246 a year. Qmerit's 2026 installation data puts a Level 2 installation at $749 to $2,500, averaging $1,700, so at that average the example charger pays back in 6 years 11 months. An electrical service upgrade, which Qmerit prices at $1,500 to $3,000 more, can stretch the payback beyond the years many owners keep a car. The second way a charger saves money is by letting you fit charging into a short off-peak window. A long commute or a window of only a few hours can make an outlet too slow to charge entirely off-peak, and the page limits the off-peak share accordingly. For many households the honest conclusion is that a Level 2 charger is a convenience and a hedge against long driving days rather than an investment. It pays back quickly mainly for drivers with high mileage, short off-peak windows or a real alternative of expensive public charging.
Credits that ended and prices that move
Two federal incentives that shaped earlier electric car cost estimates no longer apply to a purchase or installation made now. The section 30D new clean vehicle credit and the section 25E credit for used clean vehicles ended for vehicles acquired after September 30, 2025, under Public Law 119-21. The same law ended the section 30C alternative fuel vehicle refueling property credit for property placed in service after June 30, 2026. Before that date the 30C credit paid 30% of the cost of a charger at your main home, up to $1,000, and only if the home was in a low-income community or non-urban census tract, so many households never qualified. This page keeps a 30C field at $0; it matters only for a charger that was placed in service in time at an eligible address, and for a charger installed today it should stay at zero. Many state governments and electric utilities still run their own rebates and discounted EV rate plans, and those are worth checking before buying a charger. Every price on this page moves, on different schedules. The EIA's residential electricity average is published monthly with a lag of about two months, and the 18.34 cents used here is the figure for June 2026. Utility rates change with rate cases and seasons, and time-of-use windows and prices are set utility by utility. Public fast-charging prices vary by network, location and time of day, and some networks bill by the minute or add idle fees, so the price per kWh you actually pay can differ from the posted figure. Paren's quarterly reports are a useful national benchmark, at 53.8 cents a kWh for the second quarter of 2026. The practical rule is to enter your own bill's rate and the price your usual network charges, and to revisit the page when either changes. The cost per mile you get here is also the input for comparing an electric car with a gas car on the gas-versus-electric page.
Frequently asked questions
How much does it cost to charge an electric car?
It depends mostly on where you charge. On this page's example, a car using 30 kWh per 100 miles and driven 13,500 miles a year draws 4,050 kWh. Charged 80% at home, mostly off-peak at 12 cents, and 20% at public fast chargers at 53.8 cents, it costs $72 a month, $866 a year or about 6.4 cents a mile. All at home at the EIA's June 2026 national average of 18.34 cents it would cost $743 a year; all at public fast chargers, $2,179.
Is home charging cheaper than public charging?
Almost always. In the example a public kWh costs about 4.1 times a home one, and moving ten points of charging from public to home saves about $164 a year. Public DC fast charging averaged 53.8 cents a kWh in Paren's Q2 2026 report, from 42.8 cents in Nebraska to 85.6 cents in Hawaii, against an EIA residential average of 18.34 cents for June 2026.
Should I add charging losses to the EPA figure?
No. The EPA says its MPGe values for electric cars include charging losses, measured at the wall on Level 2 AC charging, so the kWh per 100 miles on the label is already what your meter records. Adding a loss percentage on top counts the losses twice. The loss field here starts at 0 and is only for a consumption figure that leaves losses out.
Is a Level 2 home charger worth it?
Financially it depends on how much public charging it saves you. In the example a $1,700 installation saves $246 a year against charging on a standard outlet, because the outlet alone would push 35% of charging to public chargers instead of 20%, so it pays back in 6 years 11 months. A standard outlet adds about 5 miles of range an hour and a Level 2 charger about 25, according to the Department of Energy, so for many drivers the case is speed rather than savings.
How much does it cost to install a Level 2 charger?
Qmerit's 2026 installation data puts the typical range at $749 to $2,500, with an average of $1,700, covering the charger, labor, permits and materials. A home that needs an electrical service upgrade to 200 amps can add $1,500 to $3,000. Get a quote from a licensed electrician, since the distance from your panel to where you park moves the price.
Is there still a federal tax credit for a home EV charger?
Not for a charger installed now. The section 30C alternative fuel vehicle refueling property credit paid 30% of the cost, up to $1,000, for a charger at your main home, and only in a low-income or non-urban census tract. Public Law 119-21 ended it for property placed in service after June 30, 2026. Some states and utilities still offer their own rebates, so check yours.
Can I charge an EV on a regular outlet?
Often, if your daily driving is modest. At about 5 miles of range an hour, a standard 120-volt outlet adds roughly 40 miles over an 8-hour night. The example driver needs about 24 miles a night from home charging, which takes about 4.8 hours on an outlet. Long commutes and a short off-peak window are what push outlet-only drivers toward public chargers.