About the EV vs Petrol Calculator
Compare estimated running-cost scenarios for an electric vehicle and a petrol vehicle using the assumptions you enter.
How to Use This Calculator
Enter your values in the input fields above and click the Calculate button. Results update immediately. You can modify any input and recalculate as many times as needed. All inputs are processed locally in your browser. Optional Save Setup stores the setup only in your browser; Share Setup creates a URL containing encoded setup values. See the Privacy Policy for details.
Formula and Calculation Method
The Ev Vs Petrol uses standard formulas based on vehicle manufacturer specifications, published fuel efficiency data, and Ministry of Road Transport & Highways guidelines. Every formula is cross-verified against official references before publication and updated as standards change.
Understanding Your Results
Vehicle running-cost results depend on the assumptions you enter. Actual energy or fuel use, tariffs, maintenance and resale values can differ by vehicle, route and location.
Why Use CalcuTools India
CalcuTools India is an independent, free calculator platform covering personal finance, income tax, salary, loans, investments, retirement planning, and health, with formulas and applicable rules checked against the stated methodology or primary/reference sources where applicable. We are not affiliated with any bank, insurance company, NBFC, or financial products distributor. Our calculators are free to use. Some pages may contain clearly labelled partner or affiliate offers; these do not affect the calculation result.
CalcuTools India · India-focused calculators · Updated September 2026 · About Us · How We Verify · Editorial Policy · Disclaimer
EV vs Petrol Car — Real Fuel Cost Comparison
With electric vehicle adoption accelerating in India, the most common question buyers ask is whether the switch actually saves money on a day-to-day basis. This calculator compares pure running costs — fuel for petrol vs electricity for EVs — based on your actual driving pattern.
Why EVs Cost Less to Run
Electricity is fundamentally cheaper per kilometre than petrol in India. A typical petrol car covers 15-18 km/litre at ₹100+/litre, costing roughly ₹6-7 per km. An EV covering 5-7 km/unit at ₹6-10/unit electricity cost works out to roughly ₹1-1.5 per km — often 4-5x cheaper per kilometre.
What This Calculator Doesn't Include
This is a pure fuel/energy cost comparison. It excludes: the higher upfront purchase price of most EVs compared to equivalent petrol models, battery degradation and eventual replacement cost (typically needed around 8-10 years or 1.5-2 lakh km), lower EV maintenance costs (no engine oil, fewer moving parts, regenerative braking reduces brake wear), and any state government EV subsidies or registration/road tax waivers.
When EVs Make the Most Financial Sense
High daily mileage drivers (40+ km/day) see the fastest payback on the EV price premium. Home charging access (avoiding paid public charging) significantly improves the economics. Cities with EV-friendly policies (lower road tax, free parking, dedicated lanes in some areas) add further value beyond pure fuel savings.
Frequently Asked Questions
Do EVs really save money considering the higher purchase price? +
It depends on your usage. High-mileage drivers (commuting 40+ km/day) typically recover the price premium through fuel savings within 3-5 years. Low-mileage city drivers may take longer to break even purely on fuel costs.
How much does it cost to charge an EV at home vs public charging? +
Home charging on a residential electricity tariff is typically the cheapest option (₹6-10/unit depending on your state and slab). Public fast-charging stations often charge a premium, sometimes 1.5-2x the home electricity rate.
What about EV battery replacement cost? +
Most EV manufacturers offer 8-year/1.5-2 lakh km battery warranties. Replacement costs (if needed after warranty) can be significant — often 30-40% of the vehicle's original price — though battery prices are falling steadily as technology improves.
Is petrol price volatility a factor in this comparison? +
Yes — petrol prices fluctuate with global crude oil prices and government taxation changes, while electricity tariffs are generally more stable. This adds a layer of long-term cost predictability favoring EVs that this calculator's snapshot comparison doesn't fully capture.
🔄 Last Updated: September 2026 · Rule year is shown where relevant; verify source-linked rules before filing or payment
How It Is Calculated
Total Cost of Ownership: EV = Purchase price + Charging cost per km. Petrol = Purchase price + Fuel cost + Higher maintenance. Break-even = Price difference / Annual fuel savings.
Worked Example
Tata Nexon EV Rs 15L vs Nexon petrol Rs 12L. EV charging: Rs 1.50/km. Petrol: Rs 8/km. Annual km: 15,000. Annual saving = Rs 97,500. Break-even on Rs 3L higher cost = 3.1 years. After 3 years, EV saves Rs 97,500/year.
Tips
EV economics depend on daily km and electricity rate. PM Surya Ghar subsidy makes home solar + EV a strong combination. EV maintenance is lower - no oil change, fewer brake pads. Home charging setup costs Rs 8,000-15,000 one-time.