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About EV vs Gas Break-Even Calculator: Fuel & Maintenance Payback
Compare electric and gasoline vehicle purchase and operating costs and estimate when fuel and maintenance savings recover an EV price premium.
Change the example inputs to match a scenario and review the methodology and limitations before using the result in a decision. Calculations run locally in your browser.
How the calculation works
EV annual energy cost
Annual miles × (EV kWh per 100 miles ÷ 100) × electricity rate.
Gas annual fuel cost
(Annual miles ÷ MPG) × fuel price.
Annual operating savings
(Gas fuel + gas maintenance) − (EV electricity + EV maintenance).
Break-even time & mileage
Break-even years = positive purchase premium ÷ positive annual savings; break-even miles = break-even years × annual miles.
How to use this calculator
- 1Replace the example values with internally consistent inputs.
- 2Review all result cards and any not-applicable state.
- 3Compare multiple scenarios and verify important assumptions independently.
Understanding the result
A positive EV premium paired with positive annual savings yields a predictable break-even timeline in years and miles.
If the EV purchase price is lower than or equal to the gas vehicle, break-even is immediate (0 years).
If annual operating savings are zero or negative while an EV price premium exists, the price premium cannot be recovered through operating savings alone.
Important limitations
- Outputs are planning estimates and do not include every provider, accounting, financing, tax, legal, or operational factor.
- Invalid divisions are shown as not applicable rather than NaN or Infinity.
- Insurance, taxes, financing, depreciation, incentives and resale value are not automatically modeled.
- Fuel and electricity prices can change over time.
- Real-world efficiency varies by climate, speed, charging losses and driving conditions.
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Frequently asked questions
What does the EV vs Gas Break-Even Calculator calculate?
It compares purchase and annual operating expenses (energy and maintenance) between an EV and a gasoline vehicle to estimate when fuel and maintenance savings recover an EV price premium.
How is EV annual energy cost calculated?
Annual miles are multiplied by EV efficiency (kWh per 100 miles divided by 100) and the electricity rate per kWh.
What happens if the EV has no purchase premium?
If the EV purchase price is equal to or less than the gas vehicle, the break-even time and mileage are 0 because savings begin immediately.
Why does the calculator show Not Applicable for break-even?
If an EV costs more to purchase and gas vehicle operating costs are lower (negative or zero annual savings), the premium cannot be recovered through operating savings alone.
Are government tax credits included?
No. You can reflect state or federal incentives directly by deducting them from the EV purchase price input.
Is my entered vehicle data stored or uploaded?
No. All calculations run strictly in your web browser.
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