Petrol vs EV Cost Calculator
Compare the monthly and annual running cost of a petrol vehicle against an electric vehicle for your driving distance.
- Free to use
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- Works on all devices
Your result
₹8,200
Monthly savings with EV
AI explanation
Formula
Petrol cost = (distance ÷ km per liter) × price per liter; EV cost = (distance ÷ 100) × kWh per 100km × electricity rateWorked example
1,500 km/month, ₹100/l petrol at 15 km/l vs EV at 15 kWh/100km, ₹8/kWh
| Field | Value |
|---|---|
| Monthly driving distance | 1500 |
| Petrol price (per liter) | 100 |
| Petrol vehicle mileage (km/l) | 15 |
| Electricity rate (per kWh) | 8 |
| EV energy consumption (kWh/100km) | 15 |
| Petrol monthly fuel cost | 10000 |
| EV monthly charging cost | 1800 |
| Monthly savings with EV | 8200 |
| Annual savings with EV | 98400 |
Assumptions
- Compares only running (fuel/electricity) cost — excludes purchase price difference, EV charging infrastructure cost, maintenance cost differences, and any depreciation difference.
- A positive savings figure means the EV is cheaper to run per month at your entered driving distance and rates.
Frequently asked questions
Does this include the higher upfront cost of an EV?
No — this compares only ongoing running (fuel vs. electricity) cost. EVs are often more expensive to purchase upfront, so factor in that difference separately when deciding whether the running-cost savings pay it back over your expected ownership period.
Should I use my home charging rate or a public charging rate?
Use whichever you'll actually rely on most — home charging is typically much cheaper per kWh than public fast charging, so mixing in significant public charging will reduce your real-world savings.
What about maintenance cost differences?
EVs generally have lower maintenance costs (no oil changes, fewer moving parts) — this calculator doesn't quantify that difference, so actual total savings with an EV are often higher than the fuel-cost-only figure shown here.