Worked example
At 18 kWh/100 km and $0.18/kWh, an EV costs $0.0324/km to charge. A 7.5 L/100 km car at $1.60/L costs $0.12/km in fuel.
Assumptions and limits
Simple fuel and electricity comparison. Excludes maintenance, financing, battery changes, charging equipment, taxes, incentives, resale and driving differences.
Frequently asked questions
How long until an EV pays back its higher purchase price?
The estimate divides the purchase-price premium by annual fuel savings only, when savings are positive. It is not a full ownership-cost comparison or investment forecast.