Per-mile road trip cost
EV on DC fast charging (~$0.45/kWh, 3.0 mi/kWh under highway speeds): ~$0.15/mile. Gas car at 32 MPG and $3.45/gal: $0.108/mile. Highway EV trips are NOT always cheaper — it depends on the charger network.
Where EVs win
Tesla Supercharger pricing ($0.30–$0.36/kWh) still beats gas. Off-peak charging rates and free destination charging (hotels, malls) tip EVs decisively cheaper.
Sample 1,000-mile trip
EV at Supercharger pricing: ~$110. EV at Electrify America peak: ~$150. Gas 32 MPG car: ~$108. Gas 22 MPG SUV: ~$157. Use the EV Charging Cost Calculatorto plan your own.