Fuel Cost Calculator
Petrol or diesel cost of a road trip — with round trip and cost per person.
Result
How to use
- 1
Enter the distance, your vehicle's mileage and the fuel price.
- 2
Choose one way or round trip and how many people share the cost.
- 3
See the fuel needed, total cost and each person's share.
Questions
How is the fuel cost calculated?
Fuel needed = Distance ÷ Mileage. Fuel cost = Fuel needed × Price per litre. For 300 km at 15 km/l and ₹105 a litre: 20 litres × ₹105 = ₹2,100.
What mileage should I use?
Use your real-world highway mileage, which is usually lower than the company (ARAI) figure. Mileage drops with AC use, heavy load and city traffic.
Does it include tolls?
No — only fuel. Add FASTag tolls, parking and food separately.
About this Fuel Cost tool
Fuel Cost Calculator — Petrol or diesel cost of a road trip — with round trip and cost per person. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Enter the distance, your vehicle's mileage and the fuel price.
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Results are estimates to help you plan. They are not financial, tax or medical advice.