Fuel vs EV Total Cost of Ownership
Compare gas vs electric vehicle ownership costs with breakeven analysis. Enter values for instant results with step-by-step formulas.
Formula
TCO = Purchase Price - Credits + Fuel/Energy + Maintenance + Insurance + Depreciation + Registration
All ownership costs over the period. Fuel: miles / efficiency × price. Maintenance: miles × per-mile cost. Depreciation: purchase × (1 - retention rate)^years.
Worked Examples
Example 1: Average Commuter
Problem:12K miles/year, 5 years. Gas: $35K car, 28 MPG, $3.50/gal. EV: $45K, 3.5 mi/kWh, $0.13/kWh, $7,500 credit.
Solution:GAS TCO: Fuel: (60K / 28) × $3.50 = $7,500 Maintenance: 60K × $0.09 = $5,400 Insurance: $7,500 Depreciation: $35K × 56% = $19,600 Registration: $1,000 Total: $41,000 EV TCO: Energy: (60K / 3.5) × $0.13 = $2,229 Maintenance: 60K × $0.04 = $2,400 Insurance: $8,250 Depreciation: $37.5K × 67% = $25,125 Registration: $1,500 Total: $39,504 Savings: $1,496 (3.6%) Breakeven: ~4.5 years
Result:EV saves $1,500 over 5 years | Breakeven: 4.5 years | Marginal advantage
Example 2: High-Mileage Driver
Problem:20K miles/year, 5 years. Gas: $32K car, 25 MPG, $3.80/gal. EV: $42K, 3.3 mi/kWh, $0.11/kWh, $7,500 credit.
Solution:GAS TCO: Fuel: (100K / 25) × $3.80 = $15,200 Maintenance: 100K × $0.09 = $9,000 Insurance: $7,500 Depreciation: $18,200 Total: $50,900 EV TCO: Energy: (100K / 3.3) × $0.11 = $3,333 Maintenance: 100K × $0.04 = $4,000 Insurance: $8,250 Depreciation: $23,100 Total: $40,183 Savings: $10,717 (21%) Breakeven: ~2.5 years
Result:EV saves $10,700 over 5 years | Breakeven: 2.5 years | Strong EV advantage
Example 3: Budget Comparison
Problem:10K miles/year, 7 years. Gas: $25K used car, 32 MPG, $3.20/gal. EV: $35K, 4.0 mi/kWh, $0.15/kWh, $4,000 used credit.
Solution:GAS TCO: Fuel: (70K / 32) × $3.20 = $7,000 Maintenance: 70K × $0.10 = $7,000 (older car) Insurance: $8,400 Depreciation: $12,500 Total: $34,900 EV TCO: Energy: (70K / 4.0) × $0.15 = $2,625 Maintenance: 70K × $0.04 = $2,800 Insurance: $9,240 Depreciation: $18,600 Total: $38,265 Gas saves: $3,365 Breakeven: Never (gas wins) Budget gas car wins on TCO when purchase price gap is large and miles are low.
Result:Gas saves $3,400 | EV never breaks even | Low miles favor gas
Frequently Asked Questions
What is Total Cost of Ownership (TCO)?
TCO includes all ownership costs: purchase price, fuel/energy, maintenance, insurance, registration, taxes, and depreciation. Looking only at purchase price misses 50%+ of true cost. TCO reveals which vehicle is actually cheaper.
Are EVs really cheaper to operate?
Yes, operating costs are 50-70% lower. Electricity costs 3-5¢/mile vs 10-15¢/mile for gas. Maintenance is ~50% less (no oil changes, simpler drivetrain). But higher purchase price and insurance partially offset savings.
How long until EV savings offset higher price?
Breakeven typically 3-7 years depending on: price difference, miles driven, fuel prices, and electricity rates. High-mileage drivers break even faster. Federal tax credits significantly accelerate breakeven.
How do gas prices affect the comparison?
Every $1 gas price increase = $400-600 more annual cost for average driver. At $5/gal, EV savings double. Gas price volatility is risk; electricity prices are more stable and predictable.
What about EV battery replacement?
Modern EV batteries last 200K-300K miles. Replacement cost: $5K-15K but rare within ownership period. 8-year warranties standard. Battery health typically 80%+ after 100K miles. Not a factor for most owners.
Should I wait for cheaper EVs?
Prices are dropping ($30K EVs now available). But waiting loses years of fuel savings. Calculate TCO with today's prices. Tax credits may phase out. Buy when TCO favors EV for your situation.
How do I estimate EV range and charging costs?
EV range depends on battery size (kWh), efficiency (miles per kWh, typically 3-4), temperature, speed, and terrain. Charging cost = battery size x electricity rate / charger efficiency (about 90%). At $0.15/kWh, fully charging a 75 kWh battery costs about $12.50.
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.
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.
How do I compare the fuel cost of an electric vehicle with a gasoline car?
To compare EV vs gasoline fuel costs per mile: gas car cost = price per gallon ÷ MPG; EV cost = electricity rate ÷ miles per kWh. At US averages of $3.50/gallon and $0.16/kWh, a 30 MPG car costs about 11.7 cents per mile while a 3.5 miles/kWh EV costs about 4.6 cents per mile — roughly 60% cheaper. The EPA's MPGe rating standardizes EV efficiency by equating 33.7 kWh to one gallon.