Automotive Finance & TCO • 11 min read • Updated October 2026
Electric Vehicles vs. Gas Cars: A Complete 5-Year Total Cost of Ownership Study
Look beyond gas pump savings to evaluate the complete 5-year Total Cost of Ownership (TCO) between EVs and gas cars, including home Level 2 vs. DC fast charging, insurance differentials, and depreciation.
1. Why Fuel Savings Alone Cannot Decide the EV vs. Gas Debate
Many shoppers evaluate an Electric Vehicle (EV) by multiplying their annual mileage by the price of regular unleaded gasoline and assuming that switching to electricity automatically saves $1,800 per year. While electric drivetrains are roughly three times more energy-efficient than internal combustion engines (ICE), energy cost is only one of six core variables that determine a vehicle's true 5-Year Total Cost of Ownership (TCO).
Across the first 60 months and 75,000 miles of vehicle ownership, depreciation is by far the largest single expense (often accounting for 45% to 55% of total ownership cost), followed by financing interest, auto insurance premiums, energy/fuel, scheduled maintenance, and state registration fees. Our EV vs. Gas 5-Year TCO Calculator models all six variables simultaneously so you can find your exact mileage breakeven point.
2. The Exact Energy Cost Equation: kWh Efficiency vs. MPG
To compare the per-mile energy cost of an electric vehicle against a gasoline or hybrid vehicle, you must account for both the vehicle's drivetrain efficiency (miles per kilowatt-hour vs. miles per gallon) and Level 2 AC charging conversion losses (typically 10% to 12% thermal loss inside the onboard charger):
EV_Cost_Per_Mile = (Electricity_Rate_Per_kWh / EV_Miles_Per_kWh) * 1.10_Charging_Loss_Factor Gas_Cost_Per_Mile = Gasoline_Price_Per_Gallon / Vehicle_Combined_MPG Annual_Energy_Savings = Annual_Miles_Driven * (Gas_Cost_Per_Mile - EV_Cost_Per_Mile) 5_Year_Total_TCO = (Net_Purchase_Price - Year_5_Resale_Value) + 5_Yr_Energy + 5_Yr_Insurance + 5_Yr_Maintenance + 5_Yr_Financing + Registration_Fees
- Home Level 2 Off-Peak Charging ($0.11 to $0.16 / kWh): An EV achieving 3.5 miles per kWh charged overnight on a residential utility plan at $0.14/kWh (with 10% charging loss) costs just $0.044 per mile ($660 per 15,000 miles).
- Public Commercial DC Fast Charging ($0.42 to $0.56 / kWh): Drivers without home garage or driveway charging who rely exclusively on commercial DC fast chargers paying $0.48/kWh spend $0.137 per mile ($2,057 per 15,000 miles)—which is actually more expensive per mile than a 32 MPG gasoline car at $3.50/gallon ($0.109/mile) or a 48 MPG hybrid ($0.073/mile)! Home charging access is the single biggest prerequisite for EV economic viability.
3. 5-Year / 75,000-Mile TCO Case Study: Electric Crossover vs. Gas Crossover
Let us compare two similarly equipped mid-size crossovers driven 15,000 miles per year over 5 years (75,000 total miles): Vehicle A is an Electric Crossover with a net purchase price of $41,500 (after point-of-sale incentives, 3.4 mi/kWh efficiency, 85% home charging at $0.14/kWh + 15% road-trip DC fast charging at $0.46/kWh); Vehicle B is a comparable Gasoline ICE Crossover purchased for $37,500 (achieving 29 MPG combined on $3.55/gallon regular unleaded):
| 5-Year Ownership Cost Category (75,000 Miles) | Electric Crossover ($41,500 Net) | Gasoline Crossover ($37,500 Net) |
|---|---|---|
| 1. 5-Year Depreciation (Net Price minus Yr-5 Resale) | $22,825 ($18,675 Resale / 45% Retained) | $18,000 ($19,500 Resale / 52% Retained) |
| 2. 5-Year Energy / Fuel Cost (75,000 Miles) | $4,310 ($0.057 / mile blended) | $9,181 ($0.122 / mile @ $3.55/gal) |
| 3. 5-Year Scheduled Maintenance, Brakes & Tires | $2,850 (Zero Oil/Spark Plugs; Higher Tire Wear) | $4,650 (Oil, Transmission, Brakes, Belts, Tires) |
| 4. 5-Year Auto Insurance Premiums | $10,200 ($170 / mo — Higher Collision Repair Cost) | $8,700 ($145 / mo) |
| 5. 5-Year Loan Financing Interest (6.0% APR, 20% Down) | $5,310 | $4,798 |
| 6. 5-Year Registration + State EV Road-Tax Surcharges | $1,650 (Includes $200/yr State EV Highway Fee) | $950 |
| Total 5-Year Cost of Ownership (TCO) | $47,145 ($0.629 / mile) | $46,279 ($0.617 / mile) |
Look at how complete TCO analysis prevents unpleasant financial surprises: over 75,000 miles, the Electric Crossover saves $4,871 in fuel and $1,800 in mechanical maintenance ($6,671 combined operational savings). However, those operational savings are offset by steeper 5-year depreciation ($4,825 more depreciation), slightly higher insurance premiums ($1,500 over 5 years due to specialized battery/sensor collision repair rates), and state EV registration surcharges ($700). At 15,000 miles/year, the two vehicles finish within $866 of each other over 5 years.
4. Three Strategies That Tilt the TCO Equation Decisively in Your Favor
- Buy a 2-to-3-Year-Old Used EV: Because new EVs experience steep depreciation during Years 1 and 2 (often losing 35% to 45% of original MSRP in the first 24 to 30 months due to rapid battery technology improvements and manufacturer price cuts), purchasing a 2-year-old certified pre-owned EV for $24,000 to $27,000 lets the first owner absorb the depreciation hit while you capture 100% of the fuel and maintenance savings—and the federal 8-year / 100,000-mile high-voltage battery warranty transfers to you automatically!
- High-Mileage Commuters (18,000+ Miles/Year): Because EVs have higher fixed/capital costs and ultra-low variable per-mile energy costs, every mile you drive above 15,000 miles/year tips the scale toward electric. At 22,000 miles/year over 6 years (132,000 miles), an EV charged at home saves over $11,500 in fuel and maintenance.
- Compare Against a Conventional Hybrid (HEV): If you live in an apartment without home Level 2 charging or live in a region with high residential electricity rates ($0.32+/kWh in parts of California and New England) and low gas prices, run our Hybrid vs. Gas Payback Calculator—a 48 MPG conventional hybrid often delivers the lowest 5-year TCO of all three powertrains.