Fuel Cost Calculator for India
Precision fuel consumption modelling for Indian roads. Work out trip costs, compare two vehicles, or set your monthly running budget across petrol, diesel, CNG and EV.
Selected: Maruti Suzuki Swift · Car · Petrol
Advanced settings
Units, city fuel presets, tolls, parking and tax
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Advanced settings
Units, city fuel presets, tolls, parking and tax
Selecting a city fills in its current pump rates. Editing a rate manually keeps your value.
✓ Units, presets and fee settings save automatically on this device.
Trip history
Saved calculations appear here
Hit “Save calculation” after a result and it will be stored in this browser so you can reopen it later.
Estimated total
*Figures assume steady driving. Real-world consumption can vary 15–30% with traffic, terrain, AC use and vehicle load.
How fuel cost is calculated
Fuel cost is distance divided by mileage, multiplied by the local pump rate. A 100 km trip in a vehicle returning 20 km/l with petrol at ₹105/litre costs ₹525. CNG swaps litres for kilograms, and EVs swap them for units of electricity.
₹ = (D / E) × PDistance · Economy · PriceFrequently 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 does this automatically once you pick your vehicle and enter the distance.
Why is my real-world mileage lower than the claimed figure?+
ARAI figures are measured in ideal lab conditions. Traffic, terrain, driving style, vehicle age, tyre pressure and AC usage typically knock 15–30% off. Override the default mileage with your own measured number for an accurate result.
Can I calculate CNG and electric running costs?+
Yes. CNG is priced per kg with mileage in km/kg, and EVs use km/kWh with an electricity tariff per unit. Switch the engine configuration to match your vehicle.
How do I compare petrol versus diesel?+
Use the Compare tab. Set the petrol variant as Vehicle A and the diesel variant as Vehicle B, enter both fuel rates, and the readout shows which is cheaper for that distance and by how much.