Vehicle EconomicsGas Price Needed for EV to Pay Off
How high would gas prices need to go for your EV's charging savings to pay off its premium?
Why this comes up
An EV can be justified purely by a gas-price scenario even if today's price does not clear the bar, which matters if you're weighing a purchase you plan to keep for years and don't want to base the decision entirely on this week's price at the pump. This engine solves the gas price at which the EV's charging savings recover its premium, holding everything else fixed, so you can judge the EV against a concrete threshold instead of a gut feeling about where gas prices are headed.
How we calculated this
The gas candidate's total cost, financing, depreciation, insurance, maintenance, repairs, and fuel, is recomputed at a trial gas price, searching for the price where it ties the EV's total cost over your chosen horizon. The EV's own charging costs, at your entered rates and charging mix, stay fixed throughout the search.
Worked example, using this page's own defaults: the EV breaks even once gas reaches about $2.17/gallon, below many typical prices, so the EV already wins for most real-world gas prices here.
What this means
- A break-even price well below today's actual gas price means the EV already wins at current prices, not just in a future scenario, worth knowing before treating the EV as a bet on rising fuel costs.
- A break-even price above today's actual gas price means the EV is currently a bet on rising gas prices, a real possibility but one worth naming explicitly rather than assuming.
- Run Electricity Price Break-Even vs Gas alongside this one to see both sides of the same tradeoff, since a high electricity rate can erode the EV's advantage just as much as a low gas price does.
Limitations
Reports no solution if no price from $0-$20/gallon ties the two options, meaning one vehicle wins regardless of realistic gas prices. Depreciation is a flat planning estimate, not a forecast, for both vehicles. See Methodology.
Methodology
This engine combines Vehicle Economics' fixed-rate amortization model (the standard loan-payment formula run out as a full month-by-month schedule), equity and depreciation projection model (your value and loan payoff projected forward from your own depreciation figure until they cross), ownership total cost model (every ownership cost, depreciation, financing, fuel, insurance, maintenance, repairs, and fees, summed over your horizon), fuel and charging cost model (your own miles, MPG or kWh, and rates converted directly to a dollar cost), and break-even search model (a closed-form solve where one exists, otherwise a bounded search over a stated plausible range). See Methodology for the full detail.