EV Charging Cost Calculator: Cost to Charge an Electric Car at Home
Charging an electric car at home costs about $41.67 a month for a typical driver, or $10.00 for a full 60 kWh charge and 4.17 cents per mile. That is this calculator's default case: 12,000 miles a year in a 4 mi/kWh EV at $0.15/kWh with 90% charging efficiency, which draws 278 kWh a month from the grid and $500 a year. Public DC fast charging at $0.45/kWh would cost about $125.00 a month for the same driving. Enter your own rate below for an exact figure.
Enter your annual mileage, vehicle efficiency, battery size, and electricity rate for an exact breakdown of cost per full charge, cost per mile, and monthly and annual totals. Add your off-peak rate to see time-of-use savings, or a comparison car's gas price and MPG to see how much less you'd spend driving electric.
Who This Calculator Is For
- People considering buying an electric vehicle
- Current EV owners comparing home vs public charging costs
- Anyone comparing total cost of ownership: EV vs gas
Before You Start
To calculate accurate EV charging costs:
- Battery capacity: Your EV total kWh (40-100 kWh typical, check manual or specs)
- Annual miles and efficiency: Miles you drive per year (12,000 typical) and your EV efficiency in mi/kWh (3-4.5 typical, shown on the dash as mi/kWh or converted from Wh/mi)
- Home electricity rate: Your all-in utility cost per kWh, including delivery and fees (many utilities also offer a lower overnight EV rate you can enter as the off-peak rate)
- Comparable gas car: MPG of your current vehicle to see savings (25-30 MPG typical)
Real-World Examples
Daily Commuter - Home Charging
A commuter driving 1,000 miles a month draws about 278 kWh from the grid after 90% charging losses, costing $36.11/month or $433.33/year at $0.13/kWh. The same miles in a 30 MPG car at $4/gallon cost $133.33/month, so home charging saves about $97/month ($1,166.67/year). A $800 Level 2 charger pays for itself in roughly 8 months on that difference, and a full 60 kWh charge costs $8.67.
Road Tripper - Mixed Charging
A 2.5 mi/kWh electric SUV driven 1,500 miles a month needs about 667 kWh from the grid, or $86.67/month charging entirely at home (5.78¢/mile). This calculator prices one rate at a time, so model mixed charging by running it twice: 1,125 home miles cost $65.00 and 375 fast-charged miles at $0.50/kWh cost $83.33, for $148.33/month. Even at that premium it beats a 20 MPG gas SUV at $300/month.
Home vs Public Charging
| Feature | Level 2 HomeHighlighted | Level 1 Home | Public Level 2 | DC Fast Charging |
|---|---|---|---|---|
| Charging Speed | 25-30 mi/hr | 4-5 mi/hr | 20-25 mi/hr | 150-300 mi/hr |
| Cost per kWh | $0.13 | $0.13 | $0.30-$0.50 | $0.40-$0.60 |
| Cost per 100 Miles | $4-$5 | $4-$6 | $10-$16 | $13-$19 |
| Full Charge Time (60 kWh) | 8-10 hours | 40-50 hours | 10-12 hours | 30-45 min |
| Equipment Cost | $500-$2,000 | $0 (included) | N/A | N/A |
Level 2 HomeHighlighted
Level 1 Home
Public Level 2
DC Fast Charging
Cost per 100 miles assumes a 3.5 mi/kWh EV at 90% charging efficiency (85% for slower Level 1), the same formula the calculator uses. Home charging assumes a $0.13/kWh electricity rate.
EV Charging Cost: Direct Answers
Every number below comes from this calculator's default inputs — 12,000 miles a year, an EV averaging 4 miles per kWh, a 60 kWh battery, a $0.15/kWh home electricity rate, and 90% charging efficiency. Change any input above and the figures update for your car and your utility.
How much does it cost to charge an electric car at home per month?
About $41.67 per month for a typical driver. Covering 1,000 miles a month in a 4 mi/kWh EV puts roughly 250 kWh into the battery, which means about 278 kWh drawn from the grid once you account for 90% charging efficiency. At $0.15/kWh that is $41.67 a month, or $500 a year. Most households land between $25 and $80 a month: the three things that move the number are how far you drive, how efficient your EV is, and your rate per kWh. If your monthly charging cost looks high, check whether an overnight rate would help with the Time-of-Use Savings Calculator.
How much does it cost to charge an EV to full?
$10.00 for a full charge of a 60 kWh battery at $0.15/kWh. The battery stores 60 kWh, but the meter sees 66.7 kWh because roughly 10% is lost as heat in the onboard charger and cables — so the cost to charge is (60 ÷ 0.90) × $0.15. Scale it to your car: a 40 kWh compact costs about $6.67 to fill at the same rate, and a 100 kWh SUV or truck about $16.67. A full charge is a useful sticker number, but few drivers ever run to empty; the monthly and per-mile figures describe real spending better.
What does an EV cost per mile to charge?
About 4.17 cents per mile at $0.15/kWh in a 4 mi/kWh EV. Each mile takes 0.25 kWh out of the battery and 0.28 kWh off the meter after charging losses. Efficiency matters as much as price: the same rate costs about 4.76 cents per mile in a 3.5 mi/kWh crossover and about 3.55 cents per mile in a 4.7 mi/kWh compact. If you are not sure what you actually pay per kWh, your bill's headline rate usually excludes delivery charges and fixed fees — the Bill Breakdown Calculator works out your true all-in rate to enter here.
Cost of charging an EV at home vs a charging station
Home charging is usually two to four times cheaper than public DC fast charging. Home rates commonly run $0.12–$0.20/kWh, while fast-charging networks typically charge $0.30–$0.60/kWh. To price a public network with this calculator, enter its price per kWh in the electricity rate field: at $0.45/kWh the same 12,000 miles a year costs about $125.00 a month ($1,500 a year, 12.5 cents per mile) versus $41.67 a month at home, and a 60 kWh fill costs about $30.00 instead of $10.00. Treat the public figure as a slight overestimate, since DC fast charging loses a little less energy than the 90% default assumed for Level 2 charging at home. Charging overnight on a time-of-use plan widens the gap further: at an $0.08/kWh off-peak rate the same driving costs about $22.22 a month, or $266.67 a year — a $233.33 annual saving you can model by entering an off-peak rate above. There is more on mixing home, workplace, and road-trip charging in our guide to EV charging costs.
Is charging an EV cheaper than buying gas?
Yes, in most cases by a wide margin. Add a comparison car's gas price and MPG above and the calculator prices the same annual mileage as fuel. Driving 12,000 miles in a 30 MPG car at $3.50/gallon costs $1,400 a year (about 11.7 cents per mile), against $500 a year to charge at home (4.17 cents per mile) — a $900 annual saving. The comparison narrows where electricity is expensive and gas is cheap: at $0.30/kWh, home charging costs $1,000 a year and the saving falls to $400. It widens if you charge from your own roof — the Solar EV Charging Feasibility Calculator estimates how much of that 3,333 kWh a year your panels could cover. These figures are fuel costs only; insurance, maintenance, and depreciation are not included.
How It Works
Cost per Charge
Charging an EV always pulls slightly more electricity from the grid than the battery actually stores, because some energy is lost as heat. A 60 kWh battery charged at 90% efficiency draws 66.7 kWh from the grid; at $0.15/kWh, that's $10.00 for a full charge.
Cost per Mile
Vehicle efficiency (miles per kWh) tells you how far the energy in the battery takes you; dividing by charging efficiency accounts for the extra grid energy needed to put it there. A car averaging 4 mi/kWh at $0.15/kWh and 90% charging efficiency costs about 4.17 cents per mile to drive.
Monthly Cost
Rather than guessing how many times a month you plug in, this calculator works from your annual mileage: it converts miles driven into grid energy used, then applies your rate. Driving 12,000 miles/year (1,000 miles/month) at 4 mi/kWh and 90% efficiency uses about 278 kWh from the grid each month — roughly $41.67/month at $0.15/kWh.
Charging Losses
Charging efficiency is the share of grid electricity that actually ends up stored in the battery; the rest is lost as heat in the onboard charger, cables, and battery thermal management system. Level 2 home charging (240V) is typically 88-92% efficient. This calculator defaults to 90%, so a 60 kWh battery draws 66.7 kWh from the grid rather than exactly 60 kWh — the 6.7 kWh difference is the charging loss.
Time-of-Use Charging
If you enter an off-peak electricity rate, the calculator applies it to the same grid energy total used for your standard-rate cost, so the only variable that changes is price per kWh. For example, at 3,333 kWh/year (the grid energy for 12,000 miles/year at 4 mi/kWh and 90% efficiency), a $0.15/kWh standard rate costs $500/year, while an $0.08/kWh off-peak rate costs $266.67/year — a savings of $233.33/year from shifting charging to off-peak hours. Before switching plans, check what the peak rate does to the rest of your household load with the Time-of-Use Savings Calculator.
EV-versus-Gas Comparison
When you add a comparison vehicle's gas price and MPG, the calculator computes what the same annual mileage would cost in that gasoline car — (annual miles ÷ MPG) × price per gallon — and compares it against your annual home charging cost. Driving 12,000 miles/year in a 30 MPG car at $3.50/gallon costs $1,400/year, versus $500/year to charge at home, a savings of $900/year. This compares fuel only — it excludes insurance, maintenance, and depreciation. If you have or are planning solar, the Solar EV Charging Feasibility Calculator shows how much of that 3,333 kWh/year your array could cover.
What This Calculator Does Not Model
The inputs are annual miles, vehicle efficiency, battery capacity, your home rate, charging efficiency, and optionally an off-peak rate plus a comparison car's gas price and MPG — nothing else. It does not price charger hardware or installation, split your driving between home and public charging, or model battery degradation, so a year's road-trip fast charging has to be added on top of the home figures. For a walkthrough of those extras, see our EV charging costs guide, and to see EV charging alongside the rest of your bill, use the Bill Breakdown Calculator.
Next Steps
Check an Overnight EV Rate
See whether a time-of-use plan with cheap off-peak hours cuts your charging bill.
Estimate TOU SavingsCharge From Your Own Roof
See how much of your annual charging a solar array could cover.
Check Solar EV FeasibilityFind Your True Rate per kWh
Separate fixed fees from energy charges to get the all-in rate to enter above.
Break Down Your BillFactor in Home Energy
Include EV charging in your total home energy consumption analysis.
Calculate Home EnergyEV Charging Cost Comparison: Home, Public Fast Charging, TOU, and Gas
| Feature | Home (Flat Rate) | Home (TOU Off-Peak) | Public Fast Charging (DCFC) | Gasoline (30 MPG) |
|---|---|---|---|---|
| Typical cost (per kWh or per gallon) | $0.14-$0.20/kWh | $0.06-$0.10/kWh | $0.30-$0.60/kWh | $3.50/gallon |
| Cost per mile (3.5 mi/kWh EV) | $0.044-$0.063 | $0.019-$0.032 | $0.095-$0.190 | $0.117 |
| Monthly cost (1,000 miles/month) | $44-$63 | $19-$32 | $95-$190 | $117 |
| Annual cost (12,000 miles/year) | $533-$762 | $229-$381 | $1,143-$2,286 | $1,404 |
| Setup required | Standard outlet or Level 2 charger | TOU plan enrollment + off-peak scheduling | None — pay-per-use at charging network | Gas station fill-up |
| Best for | Everyday home charging | Overnight charging at the lowest rate | Road trips and away-from-home top-ups | Baseline cost comparison |
Electric columns use the ranges in the first row with a 3.5 mi/kWh EV and 90% charging efficiency, the same formula the calculator applies: cost per mile = (1 ÷ mi/kWh ÷ charging efficiency) × rate. DC fast charging loses slightly less energy than Level 2, so its column is a modest overestimate. Gas comparison assumes 30 MPG at $3.50/gal and covers fuel only. Have solar? Our Solar EV Feasibility Calculator can bring your marginal charging cost close to $0. Actual costs vary by location, vehicle, and rate plan.
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