Calculate the exact fuel cost for any journey or monthly driving. Enter your vehicle's mileage, fuel type, and current prices for petrol, diesel, CNG, or electricity.
Fuel cost = (Distance / Mileage) × Fuel price. For a 500 km trip in a car doing 15 km/L at ₹100/L: (500/15) × 100 = ₹3,333. This calculator handles all fuel types and units automatically.
At typical Indian prices: Petrol costs ₹6-7/km, diesel ₹5-6/km, CNG ₹2-3/km for similar vehicles. CNG is cheapest but requires a dedicated tank and less range. EVs cost ₹1-2/km on home charging.
CNG mileage is measured in km per kg of CNG, not km/litre. A typical CNG car gives 20-30 km/kg. CNG tanks hold about 8-12 kg, giving a range of 200-300 km per fill versus 400-600 km for petrol tanks.
A typical EV consuming 15-20 kWh/100km at ₹8/kWh costs ₹1.2-1.6/km. Compared to ₹6-7/km for petrol cars, EVs save ₹4-5/km in fuel costs. Annual savings of 15,000 km = ₹60,000-75,000.
Aggressive acceleration, high speeds (above 80-90 km/h), and frequent braking reduce mileage by 20-40%. Gentle acceleration, maintaining 60-80 km/h on highways, proper tyre pressure, and regular servicing optimise fuel efficiency.
ARAI figures are tested in controlled conditions. Real-world mileage is typically 15-25% lower due to: traffic, air conditioning, passenger load, road conditions, tyre pressure, driving habits, and fuel quality.
For 2,000 km/month: Petrol at ₹6.5/km = ₹13,000/month. CNG at ₹2.5/km = ₹5,000/month. Savings = ₹8,000/month = ₹96,000/year. CNG kit costs ₹40,000-70,000, so breakeven is typically 6-9 months.