EV vs Gas Calculator
Compare the total annual fuel cost and CO2 emissions of an electric vehicle versus a gasoline car.
miles
kWh/100mi
mpg
USD/kWh
USD/gal
Annual Fuel Savings (EV)
960 USD
EV Annual Fuel Cost540 USD
Gas Annual Fuel Cost1,500 USD
Annual CO2 Savings2.31 metric tons
Annual Fuel Savings (EV) vs Electricity Rate
How to Compare EV vs Gas Costs
EVs are typically cheaper to fuel and produce less CO2 even accounting for electricity generation.
Formulas
EV Fuel Cost = Miles * (kWh/100mi) / 100 * Electricity Rate
Gas Fuel Cost = Miles / MPG * Gas Price
EV CO2 = Miles * kWh/100mi / 100 * Grid Factor / 2,204.6
Gas CO2 = Miles / MPG * 19.6 / 2,204.6
Example Calculation
Driving 12,000 miles/year comparing an EV (30 kWh/100mi) at $0.15/kWh to a gas car (28 mpg) at $3.50/gal.
- 01EV fuel cost: 12,000 * 30/100 * $0.15 = $540
- 02Gas fuel cost: 12,000 / 28 * $3.50 = $1,500
- 03Annual savings: $1,500 - $540 = $960
- 04EV CO2: 12,000 * 0.30 * 0.92 / 2,204.6 = 1.50 metric tons
- 05Gas CO2: 12,000 / 28 * 19.6 / 2,204.6 = 3.81 metric tons