Is an Electric Car Cheaper Than Gas?
Wondering if an electric car is cheaper than gas over a full year? This calculator estimates your annual fuel costs for an EV vs a gasoline car based on your driving and local energy prices.
EVs typically use about 0.30 kWh per mile, while a gas car averages around 25 MPG. At $0.15/kWh and $3.50/gallon, fueling an EV usually costs roughly a third of what gasoline does over a year. Your annual savings depend on local electricity rates, gas prices, how many miles you drive, and how efficient each vehicle is. In most regions, EVs come out noticeably cheaper to fuel year over year, but the gap shrinks where electricity is expensive or gas is unusually cheap.
What your result means
Driving 1,000 miles a month, Other / Average EV costs $0.045 per mile against $0.14 for a 25 mpg gas car — a saving of $95.00 a month and $1,140.00 a year.
What a gas car would need to achieve at $3.50/gal to match your electricity cost per mile.
Above this rate the 25 mpg gas car becomes cheaper per mile. You are paying $0.15.
Fuel only — before maintenance, which also favours the EV.
How to widen the gap in your favour
- Move to an EV or time-of-use electricity tariff$108.00/yr
Overnight EV rates near $0.12/kWh are widely available. Against your $0.15/kWh that is the annual difference shown, for exactly the same driving.
- Do the bulk of your charging at home$90.00/mo vs public
Public DC fast charging around $0.45/kWh would put the same 1,000 miles at $135.00 a month instead of $45.00. The EV-versus-gas answer changes entirely depending on where the kWh come from.
- Compare against the gas car you would actually buy25 mpg assumed
This page prices a 25 mpg gas car. A 40 mpg hybrid at $3.50/gal costs $0.088 per mile, while a 20 mpg SUV costs $0.175 — the comparison vehicle matters as much as the EV.
- Count maintenance, not just fuel$300–$600/yr typical
No oil changes, no spark plugs, no exhaust work and far less brake wear thanks to regeneration. Consumer Reports puts lifetime EV maintenance at roughly half that of a comparable gas car — this calculator deliberately excludes it.
- Check the incentives before assuming the price premium4.4 yrs to offset $5,000.00
Federal, state and utility incentives, plus charger rebates, routinely cut the upfront gap by thousands. Lower the premium and the payback period in the interpretation above shortens proportionally.
Worked examples
Example A — high-mileage commuter, cheap overnight power
- EV
- Tesla Model 3 (0.25 kWh/mi)
- Electricity
- $0.11/kWh (overnight EV rate)
- Gas
- $3.50/gal at 25 mpg
- Miles per month
- 2,000
EV: 0.25 × 0.11 = $0.0275/mi → × 2,000 = $55.00/mo → Gas: 3.50 ÷ 25 = $0.14/mi → × 2,000 = $280.00/mo → saving $225.00/mo → $2,700/yr
High mileage plus a cheap overnight tariff is the best case for an EV: the fuel saving alone clears a $5,000 price premium in under two years.
Example B — low mileage, expensive grid, efficient hybrid rival
- EV
- Ford Mustang Mach-E (0.32 kWh/mi)
- Electricity
- $0.32/kWh (high-cost state)
- Gas
- $3.20/gal at 25 mpg
- Miles per month
- 600
EV: 0.32 × 0.32 = $0.1024/mi → × 600 = $61.44/mo → Gas: 3.20 ÷ 25 = $0.128/mi → × 600 = $76.80/mo → saving $15.36/mo → $184/yr
Against a 40 mpg hybrid at $0.08/mi the same EV would actually be more expensive to fuel. On an expensive grid with low mileage, buy the EV for the driving experience, not the fuel maths.
Total cost of ownership, not sticker price
EVs usually cost more to buy and less to operate. The real question is when the lower running costs outweigh the higher purchase price. For a typical buyer driving 12,000–15,000 miles per year, EVs tend to break even somewhere between year 3 and year 5.
Insurance, charging, and maintenance — the full picture
Insurance for EVs runs about 10–15% higher because of replacement battery cost. Home charging adds $30–$80 to your electric bill. Maintenance is roughly half: no oil changes, no transmission, regen brakes lasting 100k+ miles. Net result: EVs win on total annual operating cost in nearly every scenario.
Common EV ownership myths
Myth: batteries die in 5 years. Reality: most lose less than 10% capacity by 100,000 miles. Myth: charging at home is expensive. Reality: a typical full charge costs $8–$15. Myth: you'll always need a fast charger. Reality: 80% of charging happens overnight at home.
When EVs save the most money
EVs save the most when you (1) drive a lot — 15,000+ miles a year — (2) charge at home, (3) live somewhere with electricity below $0.20/kWh, and (4) keep the car for 5+ years. Stack all four and savings can top $10,000 over the ownership period.
Driver profiles: who saves the most
| Profile | Miles / yr | Likely 5-yr savings |
|---|---|---|
| Suburban commuter | 15,000 | $6,500–$9,000 |
| Family of four | 18,000 | $8,000–$11,000 |
| City driver, garage parking | 8,000 | $2,500–$4,000 |
| Apartment dweller, public charging | 10,000 | $1,000–$2,500 |
| Highway road warrior | 25,000 | $10,000–$14,000 |
Make the math work in your favor
- Stack the federal credit with state and utility rebates — some areas offer $1,500+ extra.
- Negotiate based on out-the-door price, not monthly payment.
- Compare insurance quotes before buying — premiums vary widely by EV model.
- If you can't charge at home, calculate using public charging rates, not residential.
The IRS Clean Vehicle Credit can knock up to $7,500 off a qualifying EV, often closing the upfront price gap entirely.