Petrol vs EV Cost Calculator
Compare petrol running cost with EV electricity running cost using your own mileage, efficiency and local energy prices.
Energy cost comparison
Enter values
Energy-cost comparison only: this does not include purchase price, insurance, maintenance, financing, battery replacement, resale value or taxes.
How this calculator works
Petrol cost per km = Petrol Price / Mileage.
EV battery kWh per km = 1 / EV km per kWh.
The EV value is adjusted for charging loss before multiplying by electricity tariff.
Example
If petrol costs ₹100/litre and a car gives 15 km/l, petrol energy cost is about ₹6.67/km. An EV at 6 km/kWh can be much lower depending on the electricity tariff.
Frequently asked questions
Does this prove an EV is cheaper overall?
No. It compares only fuel or electricity running cost.
Should I include charging loss for EVs?
Yes. Wall electricity consumption can be higher than battery energy used.
Can public fast charging change the comparison?
Yes. Enter the tariff or charging price that reflects where you normally charge.