How do I calculate fuel cost for a trip?

Fuel cost = (Distance ÷ Mileage) × Fuel Price per Litre. For example, a 300 km trip in a car that gets 15 km/l with petrol at Rs.100/l costs (300÷15) × 100 = Rs.2000.

What is the average mileage of cars in India?

Average mileage ranges from 12-15 km/l for petrol hatchbacks, 15-20 km/l for sedans, 20-25 km/l for diesel cars, and 40-60 km/l for bikes.

How do I split fuel cost for a road trip?

Enter the number of passengers in the calculator. The total fuel cost is divided equally among all passengers automatically.

Home›Calculators›Fuel Cost

⛽ Fuel Cost Calculator

Calculate fuel cost for any trip based on distance, mileage, and current fuel price.

Trip Distance (km)

Fuel Efficiency (km/litre)

Fuel Price (₹/litre)

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Number of Passengers

💡 Actual mileage depends on speed, load, AC usage, road type and tyre pressure. Add 10-15% buffer.

How to Calculate Fuel Cost for Any Trip

Fuel cost depends on three factors: distance, vehicle fuel efficiency (mileage), and current fuel price. Most people underestimate trip costs because they use the manufacturer's claimed mileage instead of real-world mileage, which is 15–25% lower due to traffic, AC usage, load, and road conditions.

Fuel Cost Formula

Fuel Needed (litres) = Distance (km) ÷ Mileage (km/litre)
Total Cost = Fuel Needed × Price per Litre
Cost per km = Total Cost ÷ Distance

Real-World Mileage Guide (India)

Bikes: Hero Splendor 60–70 km/l | Activa 45–55 km/l | Royal Enfield 30–35 km/l
Petrol Cars: Maruti Alto/WagonR 18–22 km/l | Swift 18–21 km/l | Baleno 20–23 km/l
Diesel Cars: Swift Dzire 22–25 km/l | Innova 12–16 km/l | Fortuner 10–13 km/l
Highway vs City: Highway mileage is 20–30% better than city due to less braking and steady speeds

Tips to Improve Fuel Efficiency

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Optimal Speed

Best fuel efficiency is achieved at 60–80 km/h for most cars. Driving at 100 km/h uses 15–20% more fuel than 80 km/h due to aerodynamic drag increasing exponentially with speed.

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AC Usage

Air conditioning reduces fuel efficiency by 8–12% in city driving. Use AC at 24°C and recirculation mode to reduce compressor load. At highway speeds, AC is more efficient than open windows.

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Tyre Pressure

Under-inflated tyres by 10 PSI reduce fuel efficiency by 0.2% each. Check tyre pressure monthly. Correct pressure is on the door sticker, not the maximum on the tyre sidewall.

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Fuel Price Comparison

Petrol prices vary by ₹2–5 across Indian states due to local taxes. Filling up in cheaper states during long highway trips can save ₹200–500 on a full tank.