EV Charging Cost Calculator
What an electric car actually costs to fuel versus gas — per mile and per year, with home charging, public fast charging, and the charging losses most comparisons quietly ignore.
Fuel cost only. This compares energy, not total ownership — insurance, maintenance, depreciation and purchase price all differ too. Your electricity rate matters more than the car: the same EV can cost 5¢ or 15¢ a mile depending on where and when you charge.
US average is about 13,500 miles.
Overnight EV or time-of-use rates can be half this.
DC fast charging commonly runs $0.40–$0.60 per kWh.
You would save
Enter your mileage
| Detail | Amount |
|---|---|
| Electric — cost per mile | — |
| Gas — cost per mile | — |
| Electric — per year | — |
| Gas — per year | — |
| Electricity used | — |
What Does a Home Charger Cost to Install?
The charger toggle above spreads the install across your driving. Here's what actually makes up that number, and why quotes for the same charger range from under $1,000 to over $5,000.
| Line item | Typical cost | Notes |
|---|---|---|
| Level 2 charger unit | $300–600 | Hardwired or plug-in to a 240 V outlet |
| Installation labor & materials | $200–3,000+ | 3–5 hours typical; distance from panel drives it |
| Permit | $50–200 | Required almost everywhere |
| Typical all-in install | $1,000–2,500 | Most homeowners land $1,200–1,800 |
| Panel upgrade, if needed | +$1,500–4,000 | 100 A or 200 A panel with no spare capacity |
| Load management device | $300–500 | Often replaces a panel upgrade entirely |
The three things that decide your price
- Distance from the panel to the parking spot. A charger on the other side of the garage from the panel is a short run and a cheap job. A charger at the end of a detached driveway means trenching, conduit, and a much bigger number.
- Whether your panel has spare capacity. A Level 2 charger typically wants a 50-amp circuit. If your panel is full or the service is small, that's where the $1,500–4,000 upgrade comes from — and it's the single biggest swing in any quote.
- Whether a load manager will do instead. A $300–500 load management device lets the charger throttle when the rest of the house is drawing power, which often satisfies code without upgrading the service at all. Ask about it before accepting a panel-upgrade quote — many homeowners aren't told this option exists.
One timing note: the 30% federal tax credit for home charging equipment (Section 30C) ended June 30, 2026, so installs after that date pay full price. Some utilities still offer their own charger rebates or discounted off-peak charging rates — worth checking yours, since off-peak rates change the running-cost math above more than the install price does.
How EV Running Cost Is Calculated
- Energy needed = miles ÷ efficiency (mi/kWh).
- Energy paid for = that figure ÷ 0.875, because Level 2 charging is only about 85–90% efficient. You pay for electricity that never reaches the battery.
- Electric cost = energy paid for × your rate (blended, if you split home and public).
- Gas cost = miles ÷ mpg × price per gallon.
Worked example — 12,000 miles, 3.5 mi/kWh, $0.17/kWh, vs 30 mpg at $3.30: 3,429 kWh into the car, 3,918 kWh paid for → $666/year electric vs $1,320 gas, saving about $654. That's 5.6¢ vs 11¢ per mile.
Where You Charge Changes Everything
| Charging | Typical rate | Cost per mile | vs 30 mpg gas |
|---|---|---|---|
| Home, overnight EV tariff | $0.09/kWh | ~2.9¢ | Saves ~$980/yr |
| Home, standard rate | $0.17/kWh | ~5.6¢ | Saves ~$654/yr |
| Mixed, 20% public | blended ~$0.24 | ~7.8¢ | Saves ~$385/yr |
| Public DC fast only | $0.50/kWh | ~16.3¢ | Costs ~$650 MORE |
This is the part most EV cost articles skip. If you can't charge at home, the fuel savings can disappear entirely — and against an efficient hybrid, public-only charging is simply more expensive.
Before You Assume It Pays
- Check for an EV tariff. Many utilities offer overnight rates at half the standard price or less — often the single biggest lever on running cost.
- Home charger installs run $1,500–$3,000. Over a decade that's 1–2¢ per mile; toggle it above to see it included.
- Cold weather cuts range 20–40%. Winter efficiency is meaningfully worse than the sticker figure.
- Adding an EV changes your solar math. 12,000 miles adds roughly 3,700 kWh a year — size an array against post-EV usage, not today's bill.
- Compare against the car you'd actually buy, not a national average. Against a 50 mpg hybrid the gap narrows sharply.
Frequently Asked Questions
What does home charging cost?
About 5.6¢/mile at $0.17/kWh and 3.5 mi/kWh — roughly $660 a year for 12,000 miles, versus $1,320 for a 30 mpg car at $3.30.
Is DC fast charging more than gas?
It can be. At $0.50/kWh that's ~16¢/mile — worse than many gas cars. Public-only charging often erases the savings.
What are charging losses?
Level 2 charging is ~85–90% efficient, so you buy 10–15% more electricity than the battery stores. This calculator includes that.
Does off-peak charging help?
A lot — EV tariffs can drop overnight rates below 10¢/kWh, roughly halving cost per mile.
Does it pair with solar?
Yes, but 12,000 miles adds ~3,700 kWh/yr — often 3 kW of extra panels. Size for post-EV usage.
What about charger install cost?
$1,500–$3,000 typically; about 1–2¢/mile spread over ten years.
References
- US Department of Energy / fueleconomy.gov — EV efficiency and cost comparison: fueleconomy.gov
- US Energy Information Administration — residential electricity and gasoline prices: eia.gov
- DOE Alternative Fuels Data Center — charging infrastructure and losses: afdc.energy.gov