Fuel Cost Calculator for India
Calculate the exact fuel cost of any trip in India with this free fuel cost calculator. Pick from a wide list of popular cars, motorcycles, scooters, three-wheelers and EVs sold in India. Enter the distance you plan to travel, the current petrol, diesel or CNG price at your local pump, and see how much your trip will cost in rupees.
The calculator supports three modes: Trip cost for one-off journeys, Compare for evaluating two vehicles side by side, and Budget for estimating your weekly, monthly and yearly fuel spend based on your daily commute.
How fuel cost is calculated
The basic formula is: Fuel cost = (Distance ÷ Mileage) × Fuel price. For example, a 100 km trip in a vehicle that delivers 20 km/l, with petrol at ₹105/litre, costs ₹525 in fuel. The calculator does this math instantly and lets you customise mileage and fuel price to match your real-world numbers, since manufacturer-claimed mileage often differs from real driving conditions. For a complete breakdown with worked examples for petrol, diesel, CNG and EV vehicles, see our guide: How is fuel cost calculated in India?
Vehicles supported
The built-in list covers popular Indian models including the Maruti Suzuki Swift, Alto K10, Baleno, Brezza, Ertiga and Grand Vitara; Hyundai Creta, i20 and Venue; Tata Nexon, Punch, Altroz and Nexon EV; Mahindra XUV700, Scorpio-N, Thar and XUV400 EV; Kia Seltos, Sonet and Carens; Toyota Innova Crysta, Hycross and Fortuner; Honda Activa 6G, Shine and City; Hero Splendor and Passion; Bajaj Pulsar and Chetak; TVS Jupiter, Apache and iQube; Royal Enfield Classic 350 and Hunter; Ola S1 Pro, Ather 450X, MG ZS EV and many more. Vehicles missing from the list can be added manually.
Frequently asked questions
How do I calculate the fuel cost for a trip?
Divide the trip distance by your vehicle's mileage to get the fuel needed in litres, then multiply by the current fuel price per litre. The Trip Cost tab in this calculator does this automatically once you select your vehicle and enter the distance.
Why is my real-world mileage lower than the manufacturer's figure?
Manufacturer mileage is measured under ideal lab conditions (typically ARAI-certified in India). Real-world mileage depends on traffic, terrain, driving style, vehicle age, tyre pressure, AC usage and fuel quality. A 15–30% drop versus the claimed figure is normal. You can override the default mileage in the calculator with your own measured number for a more accurate result.
Can I calculate CNG and electric vehicle running costs?
Yes. The calculator supports petrol, diesel, CNG (priced per kg, with mileage in km/kg), and electric vehicles (where mileage is shown as range per full charge and electricity price per unit). Pick the right fuel type when adding a custom vehicle.
How do I compare petrol versus diesel running costs?
Use the Compare tab. Pick a petrol variant of a vehicle as Vehicle A and the diesel variant as Vehicle B (or two completely different cars), set both fuel prices, and the calculator shows which is cheaper to run for a given distance and how much you save.
Is this fuel cost calculator free to use?
Yes, completely free. No sign-up, no subscription. Custom vehicles you add are stored privately in your own browser and never sent anywhere.
Does the calculator work offline?
After the first visit, browsers cache the calculator and it loads quickly even on slow connections. Once loaded in your browser, it runs entirely on your device.