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Gas vs Electric Car Calculator

The most complete EV vs gas cost comparison — with financing, insurance, battery risk, scenario analysis, goal seeker, regional CO₂ data, and share links.

Your Driving

Gas Vehicle

Electric Vehicle

Financing Optional

Insurance & Battery Risk Optional
🏆 EV saves over 10 years
Annual Total Savings (EV vs Gas)
$980
Gas: $1,400 fuel + $1,200 maint | EV: $420 elec + $700 maint
Gas Cost = Miles ÷ MPG × $/gal EV Cost = Miles ÷ mi/kWh × $/kWh Break-Even = Net ΔPrice ÷ Ann. Savings PMT = P × r(1+r)ⁿ / ((1+r)ⁿ−1)
Gas Annual Fuel
EV Annual Energy
Annual Total Savings
Net Price Difference
Break-Even Period
10-Year Net Savings
Gas Monthly (financed)
EV Monthly (financed)
Cost Analysis
Chart: cumul chart.

Annual operating cost per year — includes fuel, maintenance, insurance (if enabled), and loan interest.

Chart: annual chart.

10-year total cost broken down by component for each vehicle.

Gas Vehicle TCO
Chart: gas donut chart.
Electric Vehicle TCO
Chart: ev donut chart.
YearGas $/galGas CumulativeEV CumulativeAdvantage
Gas Price Scenarios
Break-Even Year Sensitivity

How gas price and EV efficiency affect your payback period. Your inputs are highlighted.

← Gas Price ($/gal)

Colors: <3 yrs   3–5 yrs   5–8 yrs   8+ yrs

Goal Seeker

Work backwards — find the exact number that hits your break-even target.

Break even within years
Financing Cost Comparison

Expand the Financing section in Tab 1 to customize loan terms. Based on current APR and down payment settings.

10-Year Total Cost of Ownership Breakdown
Chart: gas price scenarios.
TCO Component Breakdown

Includes purchase price (after all incentives), fuel, maintenance, loan interest, insurance (if enabled), and battery risk (if enabled).

Cost ComponentGas VehicleElectric VehicleEV Advantage
Electricity Grid Region
0% (fixed grid) 2.0%/yr 5% (rapid)
Annual CO₂ Reduction (EV vs Gas)
Gas CO₂/Year
EV CO₂/Year
Trees Equivalent
Carbon Break-Even
10-Year Reduction
Miles/kg CO₂ (EV)
Full Lifecycle CO₂ Analysis (Manufacturing + Operation)
Gas Car Manufacturing
6.0 metric tons
EV Manufacturing
8.5 metric tons
Gas 10-yr Operation
EV 10-yr Operation
Gas 10-yr Total
EV 10-yr Total
The EV's higher manufacturing emissions are recovered in of driving.
10-Year EV CO₂ Projection (Grid Decarbonization)
Chart: co2 trend chart.
Annual CO₂ Breakdown
Chart: annual co₂ breakdown.
Vehicle CO₂ Comparison
Chart: vehicle co₂ comparison.

CO₂ intensity varies significantly by region. The decarbonization slider models how your EV's emissions improve as the grid adds renewable energy each year. Battery manufacturing emissions represent a one-time upfront cost recovered within 1–3 years of cleaner operation.

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How to Use This Calculator

1

Pick Your Vehicles

Use preset chips to select popular gas cars or EVs, or enter your own price, MPG, and efficiency values.

2

Set Driving & Costs

Enter your annual mileage, local gas price, and electricity rate. Expand the Financing section to model loan payments.

3

Compare Break-Even

Tab 1 shows cumulative cost curves and the year when EV savings offset the higher purchase price.

4

Explore Scenarios & CO2

Tab 2 runs sensitivity analysis and the Goal Seeker. Tab 3 compares full lifecycle CO2 with grid decarbonization modeling.

Frequently Asked Questions

Advanced Is an electric car really cheaper to operate?
Yes, for most drivers. Electricity costs roughly 3-4x less per mile than gasoline. EVs eliminate oil changes, reduce brake jobs by 50-70%, and have no transmission service. The DOE estimates EVs save $1,000-1,500/year in fuel alone.
Basics How does the federal EV tax credit work?
The IRA provides up to $7,500 for qualifying new EVs (2023-2032). Requirements: MSRP under $55k for cars ($80k trucks/SUVs), income limits apply, and battery sourcing rules must be met. Can be taken as a point-of-sale rebate at the dealer.
Advanced What about battery replacement costs?
Most batteries are warrantied for 8 years / 100,000 miles and retain 70%+ capacity at warranty end. Replacement costs have fallen to $10,000-$15,000, but most batteries outlast the vehicle. Degradation averages 1-2% per year.
Basics How does financing affect the comparison?
EV loans often carry lower APRs (5-6%) vs gas cars (6-7%) through green auto loan programs. Total interest on a $32,500 EV at 5.5% for 5 years is ~$4,600 vs $5,200 on a $23,800 gas car at 6.5%. Use the Financing section to model your terms.
Advanced Do EVs emit more CO2 to manufacture?
Yes, EV manufacturing generates roughly 8-10 metric tons of CO2 vs 6 tons for a gas car. This carbon debt is repaid through cleaner operation within 1-3 years in most US regions. Nationally, an EV produces about 55% less lifecycle CO2.
Advanced When does a gas car still make more sense?
Gas wins for: low-mileage drivers under 7,000 mi/year, heavy towing, rural areas with sparse charging, apartment dwellers without home charging, and areas with very high electricity rates above $0.30/kWh.

Formula & Methodology

Annual Gas Fuel Cost
Gas Cost = (Annual Miles / MPG) x Gas Price per Gallon
Escalation compounds this cost by the annual gas price increase rate each year.
Annual EV Energy Cost
EV Cost = (Annual Miles / mi per kWh) x Electricity Rate
Uses EPA efficiency and your home rate. Public fast-charging adds ~10-20% for frequent users.
Monthly Loan Payment
PMT = P x [r(1+r)^n] / [(1+r)^n - 1]
P = loan amount, r = monthly rate (APR / 12), n = total months. Standard amortizing loan formula.
Break-Even Year
Break-Even = (EV Net Price - Gas Price) / Annual Total Savings
Net price deducts federal credit and state incentive. Savings include fuel, maintenance, and interest differentials.
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Key Terms Explained

TCO (Total Cost of Ownership) All costs over the vehicle's life: purchase price, fuel, maintenance, insurance, loan interest, and depreciation. The true comparison metric.
MPGe Miles Per Gallon equivalent — EV efficiency in the same units as gas MPG. Most EVs rate 100-130 MPGe vs 25-35 MPG for gas cars.
Break-Even Point The year when cumulative EV savings fully offset the higher purchase price. After this point, the EV costs less in total.
Carbon Break-Even How many years until the EV's total lifecycle CO2 (including manufacturing) is less than the gas car's. Typically 1-3 years.
Regenerative Braking Captures kinetic energy during deceleration and returns it to the battery. Improves efficiency by 10-25% in city driving and reduces brake wear.
Federal EV Tax Credit Up to $7,500 for qualifying new EVs under the Inflation Reduction Act. Subject to MSRP caps and income limits.
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Real-World Examples

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Family SUV Replacement

Gas SUV (22 MPG, $3.50/gal, 14,000 mi/yr): fuel = $2,227/yr. IONIQ 6 (4.4 mi/kWh, $0.14/kWh): energy = $445/yr. After $7,500 credit, EV net premium = $4,500. Annual savings ~$1,800. Break-even: 2.5 years. 10-year net savings: ~$13,500.
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Should You Switch to an Electric Vehicle?

The upfront premium for electric vehicles has been shrinking rapidly as battery costs fall — from $1,200/kWh in 2010 to under $100/kWh in 2025. Coupled with the federal tax credit (up to $7,500) and state incentives reaching $5,000 in some states, the effective price gap for many models has closed. When you add $1,000-$2,000 in annual fuel savings plus 30-50% lower maintenance, most EV buyers break even in 3-5 years and come out $10,000-$20,000 ahead over a 10-year ownership period.

US gasoline prices have risen an average of 2-4% annually over the past two decades, with significant volatility. At a 3% annual escalation, $3.50/gallon gas today becomes $4.70/gallon in 10 years — dramatically accelerating your EV's break-even. Electricity prices, by contrast, have been far more stable, rising only 1-2% annually. This growing cost gap is the strongest long-term argument for EVs.

EV emissions vary dramatically by location. Driving an EV in California or New York produces 80-90% less CO2 than a gas car. In the Midwest or Southeast, where coal and natural gas dominate the grid, EVs still emit roughly 40-50% less. Even on the dirtiest US grids, an EV beats the average gas car. As the grid continues to decarbonize with renewable energy expansion, your EV automatically gets greener every year without any action on your part.

Gas vehicles remain competitive in specific scenarios: low-mileage drivers under 7,000 miles/year where fuel savings cannot justify the premium, heavy towing where EV range drops 20-50% under load, rural areas with sparse charging infrastructure, and apartment dwellers without home charging access who must rely on expensive public fast-charging. Very high local electricity rates above $0.30/kWh also narrow the energy cost gap significantly.

Maintenance savings are often underestimated in the gas-vs-electric comparison. EVs have no oil changes ($150-200/year for gas), fewer brake replacements due to regenerative braking (saving $200-400 over the vehicle's life), no transmission fluid changes, no spark plugs, no timing belts, and no exhaust system repairs. Consumer Reports data shows EV owners spend approximately half as much on maintenance as gas car owners — roughly $900/year less on average.