Cost comparison formulas
Gas monthly cost = (miles ÷ MPG) × $/gallon. EV monthly cost = miles × kWh/mile × $/kWh. Savings = gas − EV when positive.
What’s not included
Maintenance, insurance, and purchase price differ between EVs and ICE vehicles. This tool focuses on energy cost only.
Frequently asked questions
Q: Use home or public charging rate? A: Use your blended rate—often home off-peak for lowest kWh. Q: What if EV costs more? A: Savings show $0 when gas is cheaper for your inputs.