EV vs Gas: The Real Cost-Per-Mile Math in 2026
The per-mile arithmetic
A typical EV travels 3–4 miles per kWh. At the 17¢/kWh average home rate (with charging losses counted), that's 5–6¢ per mile. A 30-mpg gas car at ~$3.20/gallon runs about 10.7¢ per mile — roughly double. Over 12,000 annual miles: ~$700 electric vs ~$1,280 gas, a $500–600 yearly gap for the average driver, larger in cheap-electricity states and against thirstier vehicles.
Every number above is adjustable to your reality in our calculator — your state's rate, your model's efficiency, your mileage. The averages make the point; your numbers make the decision.
Where the comparison flips
The EV advantage lives and dies on where you plug in. At DC fast chargers (40–60¢/kWh) the cost per mile hits 11–17¢ — worse than the gas car. A driver who fast-charges exclusively is paying gas prices with extra steps; a driver on home or workplace power banks the full 2–3× advantage. The same car, the same roads — the plug decides.
Regional edge cases matter too: in the most expensive electricity states (Hawaii ~42¢, parts of New England ~25–30¢), home charging's edge narrows against an efficient hybrid. Cheap-power states (the Dakotas, Louisiana, Washington ~10–12¢) push EV running costs under 4¢/mile — territory gas cannot visit.
Beyond fuel: the rest of the honest ledger
In the EV's favor: maintenance — no oil changes, minimal brake wear (regen does the braking), fewer moving parts; typical savings estimates run several hundred dollars a year. Against it: higher purchase prices (narrowing, but real), potentially higher insurance, and for road-trippers, time and premium pricing at fast chargers. Depreciation cuts both ways by model and is beyond fuel math.
The honest summary: as a home-charging commuter car, the EV wins the operating-cost contest decisively. As a no-home-charging, fast-charge-dependent vehicle, it roughly ties gas on fuel and wins only on maintenance. Know which driver you are before the dealership does.
FAQ
Is charging an EV cheaper than gas?+
At home, yes — typically half to a third of gas cost per mile (5–6¢ vs ~11¢). At DC fast chargers, often no — 11–17¢/mile rivals or exceeds gas. Where you charge decides.
How much do you save per year with an EV?+
A 12,000-mile home-charging driver typically saves $500–700 on fuel vs a 30-mpg car, plus a few hundred in maintenance. Cheap-electricity states and thirstier gas comparisons push savings past $1,000.
At what electricity price does an EV stop being cheaper than gas?+
Against a 30-mpg car at $3.20/gal, the break-even is roughly 35–40¢/kWh for a typical EV. Only Hawaii and premium fast-charging routinely live above that line.