Fuel Cost Calculator
Calculate fuel cost for a trip based on distance, mileage and fuel price
Trip Details
Average fuel efficiency of your vehicle
For cost splitting per person
Enter trip details and click Calculate
Total Fuel Cost
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Litres Required
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Cost per Person
Distance
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Fuel efficiency
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Fuel price
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Passengers
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How to Use
- Enter the Trip Distance in kilometres.
- Enter your vehicle's Fuel Efficiency (km/litre for petrol/diesel, or km/kg for CNG).
- Enter the Fuel Price per litre/kg. Check your nearest petrol pump for the current price.
- Optionally, tick Round Trip to double the distance.
- Click Calculate to see fuel required (in litres/kg) and total estimated fuel cost.
How Fuel Cost is Calculated
Fuel Required = Distance (km) ÷ Mileage (km/litre)
Fuel Cost = Fuel Required × Price per Litre
Fuel Cost = Fuel Required × Price per Litre
For example: Mumbai to Pune (150 km) in a car that does 15 km/l with petrol at ₹104/litre = 10 litres × ₹104 = ₹1,040 one way (₹2,080 return).
Typical Indian Vehicle Mileage
| Vehicle Type | City Mileage | Highway Mileage |
|---|---|---|
| Small petrol hatchback | 12 – 15 km/l | 18 – 22 km/l |
| Sedan (petrol) | 10 – 14 km/l | 16 – 20 km/l |
| Diesel SUV | 12 – 16 km/l | 17 – 22 km/l |
| CNG car | 20 – 28 km/kg | 28 – 35 km/kg |
| Two-wheeler (petrol) | 35 – 55 km/l | 50 – 65 km/l |
Factors that Reduce Mileage
- AC use: Running AC in city traffic can cut mileage by 10–20%.
- Under-inflated tyres: 10 PSI low = 3–5% worse mileage.
- Aggressive driving: Rapid acceleration and hard braking cut mileage by 15–30%.
- Engine condition: A clogged air filter or dirty fuel injectors reduce efficiency.
- Load: Every extra 50 kg reduces mileage by ~1–2%.
Petrol vs Diesel vs CNG: Cost Comparison
At ₹100/litre petrol (15 km/l) = ₹6.67/km. At ₹90/litre diesel (18 km/l) = ₹5/km. At ₹80/kg CNG (25 km/kg) = ₹3.2/km. CNG offers the lowest running cost but has range limitations and is available mainly in major cities.
Frequently Asked Questions
Enter your trip distance, your vehicle's mileage (km/litre or km/kg for CNG), and the current fuel price. The calculator computes: Fuel needed = Distance ÷ Mileage, then Cost = Fuel needed × Price per litre. For round trips, tick the 'round trip' checkbox and the distance is doubled automatically.
City mileage: small petrol hatchbacks 12–16 km/l, sedans 10–14 km/l, diesel cars 15–20 km/l. Highway mileage is typically 20–30% better. SUVs: 10–18 km/l depending on engine size. CNG vehicles: 25–35 km/kg equivalent. Electric cars: ₹1–1.5 per km (factoring in home charging rates).
Fuel prices vary by city due to local VAT/taxes. As of early 2025: petrol in metro cities ranges ₹94–106/litre, diesel ₹87–95/litre. Prices change with global crude oil rates. Check your local petrol pump or state petroleum department website for exact current prices. Enter the price manually in our calculator for accurate results.
Maintain correct tyre pressure (under-inflation can cut mileage by 3–5%). Service the engine regularly, especially air filter and spark plugs. Drive smoothly — avoid rapid acceleration and hard braking. Use cruise control on highways. Reduce AC use in city traffic. Remove unnecessary weight. Keep speed between 60–80 km/h for best highway efficiency.
Generally yes. CNG costs roughly ₹75–90/kg in major cities and gives 25–35 km/kg, translating to ₹2.5–3.5/km. Petrol at ₹100/litre giving 15 km/l works out to ₹6.5/km. The savings are significant for high-mileage commuters. However, CNG has range limitations and refilling infrastructure is mainly available in major cities.