Fuel Cost Calculator: Plan Your Trip Expenses Accurately
The Simple Formula
Fuel Cost = (Distance / Mileage) × Fuel Price
A 500 km trip in a car averaging 15 kmpl at ₹105/litre: (500/15) × 105 = ₹3,500. But real-world mileage varies from ARAI-claimed figures, so always use your actual mileage.
Running Cost Per Km by Fuel Type
| Fuel | Price/Litre (approx) | Typical Mileage | Cost/km |
|---|---|---|---|
| Petrol | ₹103–108 | 14–18 kmpl | ₹6–8 |
| Diesel | ₹90–95 | 18–24 kmpl | ₹4–5 |
| CNG | ₹75–85/kg | 22–28 km/kg | ₹3–4 |
| Electric | ₹8–12/kWh | 7–10 km/kWh | ₹1–1.5 |
Diesel vs Petrol: When Does Diesel Pay Off?
Diesel cars cost ₹1–2 lakh more upfront but save ₹2–3 per km in fuel. Breakeven typically occurs at 15,000–20,000 km/year. If you drive less, petrol is more economical overall. For a detailed comparison, see our EV vs petrol analysis. Use the fuel cost calculator to plan your next trip.