EV vs Gas Total Cost of Ownership Calculator

Compare the total cost of owning an electric vehicle vs a gas car. Calculate electricity per kWh, gas prices, maintenance savings, tax credits, and break-even year.

Annual Miles Driven13,500 mi/yr

Electric Vehicle (EV)

Annual EV Fueling Cost:$605 / yr

Gasoline Car (ICE)

Annual Gasoline Cost:$1,736 / yr

EV Breaks Even in 0.9 Years

By driving an EV, you save $1,131 in fuel and $1,631 in total operating costs each year.

5-Year Total Net Savings+$6,655
Total EV Cost of Ownership (5 Yrs)
Net Upfront Purchase:$35,500
Total Electricity Fueling:$3,025
Total Maintenance:$2,250
Total EV TCO:$40,774
Total Gas Cost of Ownership (5 Yrs)
Upfront Purchase:$34,000
Total Gasoline Fueling:$8,680
Total Maintenance:$4,750
Total Gas TCO:$47,429

Quick Answer: How EV vs Gas Savings Are Calculated

The total cost of ownership (TCO) compares the vehicle purchase price (net of tax credits) plus annual fuel and maintenance operating costs over time:
Annual Fuel Savings = (Annual Miles / Gas MPG × $/Gal) - (Annual Miles / 100 × kWh/100mi × $/kWh)

Example: For 13,500 miles/year at $0.16/kWh (28 kWh/100mi = $605/yr) vs $3.60/gal (28 MPG = $1,736/yr):
Annual Fuel Savings = $1,736 - $605 = $1,131 / year
Operating Savings (inc. $500 maintenance diff) = $1,631 / year

Why Electric Vehicles Win the 5-Year Cost of Ownership Battle

While electric vehicles (EVs) often carry a higher sticker price than equivalent internal combustion engine (ICE) cars, their ongoing operating expenses are substantially lower. When factoring in the $7,500 Federal Clean Vehicle Tax Credit (IRC Section 30D), lower residential electricity costs, and the elimination of oil changes and complex engine maintenance, most EVs recoup their initial price premium in 2 to 4 years.

Operational Cost Breakdown: EV vs ICE

1. Fuel & Energy

Charging at home averages $0.04 to $0.05 per mile, compared to $0.12 to $0.15 per mile for 28 MPG gasoline cars.

2. Scheduled Maintenance

Zero engine oil changes, no transmission fluid flushes, and regenerative braking extends brake pad life past 80,000 miles.

3. Residual Value & Incentives

Point-of-sale federal tax credits up to $7,500 and state rebates immediately lower financed principal balances.

Key Drivers of EV Fuel Efficiency

  • Residential vs. Public Charging: Charging at home on off-peak residential utility rates (e.g. $0.10–$0.16/kWh) provides 70% cheaper fueling than commercial DC fast-charging Superchargers ($0.35–$0.50/kWh).
  • Aerodynamics and Weight: Sleek sedans (Tesla Model 3, Hyundai Ioniq 6) achieve 24–28 kWh/100 miles, while large 3-row electric SUVs consume 38–48 kWh/100 miles.
  • Heat Pump Efficiency: Modern EVs equipped with thermal heat pumps maintain 80%+ efficiency in freezing climates compared to older resistive heating elements.

Sources and Official Benchmarks

  • U.S. Department of Energy (DOE): Alternative Fuels Data Center (AFDC) Fuel Economy & Charging Data.
  • U.S. Environmental Protection Agency (EPA): Clean Vehicle Tax Credits & MPGe Testing Standards.
  • American Automobile Association (AAA): Your Driving Costs Annual Research Study.

Frequently Asked Questions

How long does it take for an electric vehicle to break even with a gas car?
For the average American driver (13,500 miles/year), an EV typically breaks even in 2.0 to 3.5 years when qualifying for the $7,500 federal clean vehicle tax credit. The exact break-even depends on electricity rates, local gas prices, and the upfront price premium of the EV over an equivalent gas model.
How much cheaper is charging an EV at home compared to buying gasoline?
Charging an EV at home (at the US national residential average of $0.16/kWh) costs approximately $0.04 to $0.05 per mile. In contrast, fueling a 28 MPG gas car at $3.60/gallon costs roughly $0.13 per mile. Over 13,500 annual miles, an EV saves $1,000 to $1,300 per year in fuel costs alone.
Why are EV maintenance costs lower than internal combustion engine (ICE) cars?
EVs have significantly fewer moving mechanical parts: no engine oil changes, no spark plugs, no transmission fluids, no timing belts, no catalytic converters, and no exhaust systems. Furthermore, regenerative braking reduces mechanical brake pad and rotor wear by up to 60%, resulting in 30% to 50% lower annual maintenance bills according to AAA.
What is the difference between MPGe and kWh per 100 miles?
MPGe (Miles Per Gallon equivalent) represents how far an EV can travel using the energy equivalent of one gallon of gasoline (33.7 kWh). 'kWh per 100 miles' measures direct electrical consumption. A lower kWh/100mi rating (e.g. 25 kWh vs 35 kWh) indicates a more energy-efficient vehicle that costs less to charge.
How does cold weather affect EV range and charging costs?
Cold winter temperatures reduce EV battery range by 15% to 30% due to battery chemistry slowdown and cabin climate heating (resistive or heat pump). During winter, energy consumption rises from ~28 kWh/100mi to ~34–38 kWh/100mi, slightly increasing monthly charging costs.
Do EV batteries degrade and require expensive replacement?
Federal law mandates that all EV batteries carry a minimum warranty of 8 years or 100,000 miles (10 years / 150,000 miles in California). Real-world telemetry from Recurrent Auto and Tesla shows modern liquid-cooled lithium-ion batteries degrade only 1% to 1.5% per year, typically retaining over 80% to 85% capacity past 150,000 miles.

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