Fuel Cost Calculator
Calculate petrol or diesel cost for any trip in India — litres needed, total cost and cost per kilometre.
Approximate fuel prices in major Indian cities (2025)
| City | Petrol (₹/L) | Diesel (₹/L) | CNG (₹/kg) |
|---|---|---|---|
| Delhi | 94.77 | 87.67 | 74.09 |
| Mumbai | 103.44 | 89.97 | 66.00 |
| Bengaluru | 102.86 | 88.94 | 71.61 |
| Chennai | 100.85 | 92.35 | — |
| Kolkata | 104.95 | 91.76 | 57.10 |
| Hyderabad | 107.41 | 95.65 | — |
Prices are approximate for reference only. Check your local fuel station or petrolpriceindia.com for today's rate.
Frequently asked questions
How is fuel cost calculated?
Fuel cost = (Distance ÷ Fuel Efficiency) × Fuel Price. For example, 300 km at 15 kmpl with petrol at ₹103/litre → 20 litres needed → ₹2,060 total fuel cost.
What is a realistic fuel efficiency to enter for my car?
ARAI-certified figures are ideal lab numbers. In real driving, reduce by 20–30%. A car rated 18 kmpl typically delivers 12–15 kmpl in city traffic or highway at 100+ km/h with AC on. Enter your actual observed mileage for accurate results.
Why does petrol cost more than diesel in India?
Diesel is more heavily subsidised historically in India as it powers commercial vehicles and agriculture. Petrol pricing is market-linked. The gap has narrowed since 2014 deregulation but diesel typically remains ₹10–20/litre cheaper.
How does CNG mileage work with this calculator?
CNG efficiency is measured in km/kg (not kmpl). Enter km/kg in the fuel efficiency field and CNG price per kg in the price field. A typical CNG car delivers 18–22 km/kg, making CNG significantly cheaper per kilometre than petrol.
Does fuel price vary within a city?
Yes, slightly — by 20–50 paise depending on the pump and area. State taxes, central excise and dealer margins all vary. Prices also change daily. Always check current prices before a long trip.