⚡ EV vs Petrol / Diesel / CNG Savings Calculator
*Based on standard 30 driving days a month using residential electric metering.
How the Multi-Fuel EV Running Cost Tool Works
Honestly, deciding whether to switch to electric power comes down to hard numbers. Our interactive EV Charging Cost Calculator India allows you to contrast battery running expenses directly against petrol, diesel, and compressed natural gas (CNG).
To calculate your personal savings, select your comparison fuel type from the dropdown menu, drag the daily distance slider to reflect your regular commute, and check the default fuel rates. The calculator works out your monthly fuel expenses and shows your net annual savings instantly.
Running Cost Comparison: EV vs Petrol vs Diesel vs CNG
Look, conventional internal combustion vehicles waste energy in heavy traffic, while electric cars regenerate power during slowing down.
Here is how the four major powertrain options stack up for a standard commuter clocking 1,200 km per month (40 km daily) in Indian conditions:
Fuel / Powertrain Option | Fuel Price (Approx) | Expected Real Mileage | Average Cost per Km | Monthly Outflow (1,200 km) |
|---|---|---|---|---|
Electric Car (Home Charging) | ₹8 per unit (kWh) | 7.5 km/kWh | ₹1.06 / km | ₹1,272 |
CNG Car | ₹82 per kg | 24 km/kg | ₹3.41 / km | ₹4,092 |
Diesel Car | ₹90 per litre | 18 km/L | ₹5.00 / km | ₹6,000 |
Petrol Car | ₹100 per litre | 15 km/L | ₹6.66 / km | ₹7,992 |
Managing Real-World EV Maintenance & Road Trips
Straight up, buying an electric car is not just about fuel savings; keeping your battery healthy and knowing your route infrastructure matters:
- Highway Fast Charging: When taking long highway journeys across states, locate operational high-speed DC plugs using our live EV Charging Stations Near Me guide to prevent range anxiety.
- Routine Servicing & Diagnostics: Electric cars have far fewer moving parts than petrol or diesel engines, but regular brake checks and battery diagnostics remain critical. You can locate certified brand workshops through our verified EV Service Center directory.
Frequently Asked Questions (FAQ)
How much does charging an EV cost compared to running a CNG car?
A factory-fitted CNG car costs around ₹3.20 to ₹3.50 per kilometre to operate in metro cities. An electric car charged at domestic home tariffs costs between ₹1.05 and ₹1.30 per kilometre, saving you over 60% compared to CNG.
How much do I save annually by switching from petrol to electric?
Driving 40 km per day (roughly 14,400 km annually) in a petrol car costs approximately ₹96,000 to ₹1,05,000 in fuel each year. Running the same distance in an electric vehicle on home electricity costs around ₹15,000 to ₹18,000, delivering around ₹80,000 in clear annual savings.
Does AC fast charging at home degrade battery life?
No. Standard 3.3 kW or 7.2 kW AC wall box home chargers provide steady, gentle current that maintains healthy battery cell balance, making overnight home charging the ideal charging method.

