EV Charging Cost Calculator (USA)
Work out what it really costs to charge your electric vehicle at home, on public Level 2, and at DC fast chargers — then compare it against filling up a gas car over the years you plan to keep driving.
| Yr | Rate | Charging cost | Gas cost | Savings | Cumulative net |
|---|---|---|---|---|---|
| Calculate to see schedule | |||||
How to Use the EV Charging Cost Calculator
Work out what it really costs to charge your EV — at home, on public Level 2, and at DC fast chargers — and compare it against gas, in four steps.
Enter your EV & driving
Set your efficiency in mi/kWh or kWh/100mi, the miles you drive per week, month, or year, your battery size, and a charging-loss allowance for energy lost at the plug.
Choose where you charge
Pick home only, home plus public, or public only. Set your home rate, the share you charge at home, and the Level 2 and DC fast rates — plus any network subscription.
Add the gas comparison
Enter the gas price and the MPG of the car you’re comparing against, any home charger and install cost, and how fast you expect electricity and gas prices to rise.
Read your result & save it
See monthly cost, cost per mile, annual savings versus gas, charger payback, and a year-by-year comparison. Then download the branded PDF report.
What’s Included
Everything you need to price EV charging honestly — across every plug you use — and stack it up against gasoline.
Cost per mile, month & year
Turns your driving and rates into a running cost across every timeframe, plus a cost per 100 miles and per full charge for quick comparisons.
Home, Level 2 & DC fast mix
Blends the three places you charge into one weighted rate, so a mostly-home driver who fast-charges on trips gets a realistic number, not a best case.
Gas comparison & savings
Prices the same miles in a gas car at your MPG and fuel price, then shows annual and monthly savings and an equivalent MPG for the electricity you buy.
Charging losses accounted for
Separates energy to the wheels from energy bought at the plug, so the cost reflects what your meter actually charges — not just the battery’s rated size.
Charger payback & net savings
Counts a home charger and install as an upfront cost, then reports the payback period and net savings over your chosen outlook against gas.
Year-by-year schedule & PDF
Projects EV versus gas cost with separate price increases for each, highlights the break-even year, and downloads as a branded two-page report.
By the Numbers
A quick snapshot of what this calculator covers under the hood.
home · L2 · DC fast
mi/kWh · kWh/100mi
per kWh, editable
miles per kWh
no sign-up needed
Built for the Question “What Does It Cost to Charge?”
Whether you already drive electric, you’re weighing the switch, or you rely on public chargers, the calculator sizes the real cost.
Current EV owners
Wondering what your car adds to the power bill? Enter your rate and miles to see cost per mile, per month, and how much you’re saving over gas.
Gas-to-EV switchers
Deciding whether to go electric? Compare your current gas car against an EV, factor in the home charger, and see payback and net savings over the years you’ll keep it.
Public & no-home-charger drivers
Charging mostly on the road? Set your Level 2 and DC fast rates and the split between them to see what public charging really costs, subscription included.
Charge for Less
Seven habits that lower what charging costs — and make your estimate match reality.
- 1Use your off-peak rate for home charging. If you’re on a time-of-use plan and charge overnight, enter the off-peak price, not the daytime average. It’s often the single biggest lever on your cost.
- 2Don’t forget charging losses. Some energy is lost as heat between the wall and the battery — typically 8–12% on Level 2, more on Level 1. Leaving that out understates what your meter records.
- 3Set an honest DC fast share. Fast charging costs far more per kWh than home. If you only fast-charge on road trips, keep that share low so it doesn’t inflate your everyday cost.
- 4Include network subscriptions. A monthly membership can pay off if you fast-charge a lot, but it’s dead weight if you rarely do. Enter it so the per-mile cost reflects the fee.
- 5Plan for cold-weather range loss. Winter can cut efficiency 20–30%, so charging costs more per mile in the cold months. Nudge your mi/kWh down to see a realistic annual figure.
- 6Compare against the car you’d actually drive. Payback only means something against a real alternative. Use the MPG and gas price of the gas car you own or would have bought instead.
- 7Let electricity and gas escalate separately. The two rarely move together. Setting each increase on its own shows how the savings gap widens or narrows over your ownership period.
Frequently Asked Questions
Answers to the most common questions about EV charging costs and how they stack up against gas.
How do I calculate what it costs to charge my EV?
Divide the miles you drive by your efficiency in miles per kWh to get the energy your car uses, add a bit for charging losses to get the energy you actually buy, then multiply by your electricity rate. For example, 12,000 miles at 3.5 mi/kWh is about 3,430 kWh to the wheels; with a 10% loss you buy closer to 3,800 kWh, and at $0.16/kWh that’s roughly $610 a year. This calculator does the full version, blending home, public Level 2, and DC fast rates and reporting cost per mile, per month, and per year.
Is charging an EV really cheaper than buying gas?
Usually, especially when you charge at home. Home electricity is typically far cheaper per mile than gasoline, so most home-charging drivers pay well under half what a comparable gas car costs to fuel. The gap narrows if you rely on DC fast charging, which can run two to three times the home rate, or if your electricity is very expensive and gas is cheap. Enter your own rates and MPG and the calculator shows the annual and monthly difference for your exact situation rather than a national average.
Why does the calculator add charging losses?
Not all the electricity that leaves the wall reaches the battery — some is lost as heat in the charger, cables, and battery management. Your utility meter charges you for the energy drawn at the plug, not the smaller amount stored in the pack, so ignoring the loss understates your bill. Level 2 charging usually loses about 8–12%, and slow Level 1 charging can lose more. The calculator grosses your driving energy up by the loss you set, so the cost reflects what you actually pay for.
How do I handle charging in more than one place?
Choose the Home + public setup and set the share of energy you charge at home — say 80% — then split the remaining public charging between Level 2 and DC fast. The calculator applies each location’s rate to its share and reports a single blended cost per kWh, so a driver who charges mostly at home but fast-charges on trips gets an accurate weighted figure. If you have no home charger at all, pick “Public only” and set just the Level 2 and DC fast rates and their split.
What is equivalent MPG, and how does charger payback work?
Equivalent MPG translates your electricity cost into the gas mileage a car would need to cost the same per mile — a handy way to sense how efficient your charging is in familiar terms. Charger payback treats the home charger and its installation as an upfront cost and tracks your yearly savings versus gas until they’ve repaid it; the year-by-year schedule flags the exact break-even year. If you enter no charger cost, there’s nothing to pay back and the savings start immediately.
Does cold weather really change my charging cost?
Yes. In cold weather an EV uses more energy per mile — cabin heating, battery conditioning, and denser air all take a toll — and efficiency can drop 20–30% in deep winter. Since the calculator works from your average mi/kWh, entering a realistic year-round figure (or running a separate winter scenario with a lower number) gives a truer annual cost than using an ideal-weather rating. Charging losses also rise in the cold, which is another reason not to leave the loss field at zero.