EV Vs Gas Car Total Cost Calculator
Compare total ownership cost of electric vs gas vehicles over 5, 10, and 15 years. Enter values for instant results with step-by-step formulas.
Formula
Total Cost = Purchase Price + (Annual Fuel + Annual Maintenance) × Years
Total ownership cost sums the net purchase price (after tax credits for EVs) with cumulative fuel costs (miles/efficiency × rate) and maintenance costs over the ownership period. The break-even year is when cumulative EV savings equal the purchase price difference.
Worked Examples
Example 1: Mid-Range EV vs Sedan Comparison
Problem: Compare a $35,000 EV (3.5 mi/kWh) to a $30,000 gas car (30 MPG) over 10 years at 12,000 miles/year, $0.13/kWh electricity, $3.50/gallon gas.
Solution: EV net price = $35,000 - $7,500 = $27,500\nEV annual fuel = (12,000 / 3.5) × $0.13 = $446\nGas annual fuel = (12,000 / 30) × $3.50 = $1,400\nEV 10yr total = $27,500 + $4,460 + $7,200 = $39,160\nGas 10yr total = $30,000 + $14,000 + $10,800 = $54,800\nSavings = $15,640 with EV
Result: EV saves $15,640 over 10 years | Break-even: ~2.6 years
Example 2: Premium EV vs Luxury Gas Car
Problem: Compare a $55,000 EV (4.0 mi/kWh) vs $45,000 gas car (25 MPG) over 8 years, 15,000 miles/year.
Solution: EV net price = $55,000 - $7,500 = $47,500\nEV fuel/yr = (15,000/4.0) × $0.13 = $488\nGas fuel/yr = (15,000/25) × $3.50 = $2,100\nEV 8yr total = $47,500 + $3,904 + $7,200 = $58,604\nGas 8yr total = $45,000 + $16,800 + $10,800 = $72,600
Result: EV saves $13,996 over 8 years | Break-even: ~1.5 years
Frequently Asked Questions
Is an electric vehicle really cheaper than a gas car over time?
In most scenarios, electric vehicles are significantly cheaper to own over their lifetime despite higher purchase prices. The three main cost advantages are fuel, maintenance, and incentives. Electricity costs roughly $0.04-0.05 per mile versus $0.10-0.15 per mile for gasoline. EVs have fewer moving parts (no engine, transmission, exhaust system), reducing maintenance costs by 30-50%. Oil changes, transmission fluid, timing belts, and spark plugs are eliminated entirely. The federal tax credit of up to $7,500 and various state incentives further reduce the effective purchase price. Studies by Consumer Reports and the DOE consistently show EVs save $6,000-$12,000 over a 10-year ownership period.
What is the break-even point for an EV versus a gas car?
The break-even point — when cumulative EV savings offset the higher purchase price — typically occurs between 3 and 8 years, depending on the price gap, fuel costs, and driving habits. Key factors include: the purchase price difference between the EV and comparable gas car, annual miles driven (more driving favors EVs), local electricity and gasoline prices, available tax credits and incentives, and maintenance cost differences. High-mileage drivers (15,000+ miles/year) in areas with expensive gas and cheap electricity may break even in as few as 2-3 years. After the break-even point, every additional year represents pure savings.
How do I calculate my car's towing capacity?
Towing capacity = Gross Combined Weight Rating (GCWR) minus the vehicle's curb weight minus passengers and cargo. Never exceed the manufacturer's rated towing capacity. Consider tongue weight (10-15% of trailer weight), trailer brakes, and transmission cooler requirements.
How do I calculate fuel cost per mile?
Divide the price per gallon by your vehicle's MPG. At $3.50/gallon with 28 MPG, your fuel cost is $0.125 per mile. For total driving costs including maintenance, insurance, and depreciation, the IRS standard mileage rate (67 cents/mile in 2024) provides a rough benchmark.
Should I lease or buy a car?
Leasing offers lower monthly payments, a new car every 2-3 years, and warranty coverage, but you build no equity and face mileage limits (typically 10,000-15,000/year). Buying costs more monthly but is cheaper long-term, especially if you keep the car 7+ years.
What factors affect a car's fuel efficiency?
Speed (efficiency drops above 50 mph), tire pressure (each PSI under-inflated costs 0.2% efficiency), weight, aerodynamics, driving habits (aggressive driving reduces MPG 15-30%), air conditioning (reduces MPG 10-25% in city driving), and engine maintenance.