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    EV Savings Calculator – Gas vs Electric
    About the EV vs Gas Savings Calculator

    Electric vehicles (EVs) have a higher upfront cost than comparable gas vehicles but significantly lower operating costs. This calculator quantifies the exact break-even point and total savings over your expected ownership period, making the comparison concrete and personalized.

    The two main EV operating cost advantages: fuel and maintenance. Electricity is cheaper per mile than gasoline almost everywhere in the United States. At average US prices ($3.50/gallon gas, $0.13/kWh electricity): a 28 MPG gas car costs $0.125/mile. A 4 mi/kWh EV costs $0.033/mile — about 73% cheaper per mile. At 12,000 miles/year, that's roughly $1,100/year in fuel savings.

    Maintenance savings are often overlooked: EVs have no oil changes, fewer brake jobs (regenerative braking handles most braking), no transmission service, no spark plugs, and fewer moving parts overall. Average annual maintenance savings versus a comparable gas vehicle: $800–$1,500.

    Home charging vs. public charging: charging at home (typically $0.10–$0.15/kWh) is 3–5× cheaper than public DC fast charging ($0.30–$0.60/kWh). If you don't have home charging access, the fuel cost advantage narrows substantially. EV economics work best for people who can charge at home overnight.

    Federal tax incentives: the Inflation Reduction Act (2022) offers up to $7,500 federal tax credit for qualifying new EVs and up to $4,000 for qualifying used EVs. Eligibility depends on your income, vehicle MSRP, and US assembly/battery sourcing requirements. Check fueleconomy.gov for the current qualifying vehicle list.

    Battery longevity: modern EV batteries retain 70–80% capacity after 150,000–200,000 miles for most manufacturers. Most EV batteries come with 8-year/100,000-mile manufacturer warranties on capacity. The feared "battery replacement" cost of $10,000–$20,000 is typically a decade-plus away and covered by warranty for most owners.

    Formula Used
    Annual Fuel Savings = (Miles ÷ MPG × Gas Price) − (Miles ÷ Miles-per-kWh × Electricity Rate)

    The total 5-year savings calculation subtracts the EV price premium from cumulative fuel + maintenance savings. Maintenance savings reflect EVs' lower servicing needs: no oil changes, fewer brake jobs (regenerative braking), fewer moving parts.

    Example Calculations

    12K mi/yr · 28 MPG · $3.50 gas · 4 mi/kWh · $0.13/kWh · $5K EV premium

    Annual savings: $1,110 · Break-even: 4.5 years · 10-yr net: +$6,100

    20K mi/yr · 22 MPG (truck) · $4.00 gas · 3.5 mi/kWh

    Annual fuel savings: $2,450 · Break-even: 2–3 years

    8K mi/yr · 35 MPG hybrid · $3.50 gas · $8K EV premium

    Annual savings: $490 · Break-even: 16+ years (hybrid may be better)

    Frequently Asked Questions — EV vs Gas Savings Calculator

    About the Author

    H

    Henry

    Founder & Developer, Online Calculator Suite

    Henry is the independent creator of Online Calculator Suite, based in Utah. He builds and maintains every calculator on this site and writes the guides, checking formulas against published sources such as the IRS, CDC and NIH. He is not a licensed financial advisor or medical professional, so results are for information only.

    Published: Updated July 2026·5 min read read

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