Fuel Cost Calculator

Work out the fuel and cost of any trip. Enter your distance, mileage and fuel price to see litres needed, total cost, cost per km and each person's share.

🔒 Runs entirely in your browser — nothing is sent anywhere

Trip details

One-way distance of your journey.

Your vehicle's real-world fuel economy.

Current pump price per litre.

Share the cost across a carpool. Leave blank or 1 if travelling alone.

How this works

The cost of any drive comes down to three numbers. Here's the simple maths this tool runs for you.

1

Fuel needed

We divide your trip distance by your mileage (km/l) to find how many litres the journey will burn.

2

Total cost

That fuel is multiplied by the price per litre to give the full cost — doubled automatically if it's a round trip.

3

Split & per-km

We also show the cost per km and, if you're carpooling, each person's fair share of the bill.

The formula, in plain terms

Fuel & cost

  • Fuel = distance ÷ mileage
  • Total cost = fuel × price
  • Cost per km = total ÷ distance
  • Per person = total ÷ number of people

Tips for an accurate estimate

  • Use your real mileage, not the brochure figure.
  • City mileage is usually lower than highway.
  • AC, heavy loads and traffic all raise consumption.
  • Check the day's pump price for your city.

This is an estimate for budgeting a journey. Actual fuel use varies with driving style, terrain, traffic, tyre pressure and vehicle condition. Switch to the Imperial toggle to work in miles, mpg and dollars.

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Private by design. Every number stays on your device. Nothing you type is uploaded, stored or shared.

Frequently Asked Questions

How do I calculate the fuel cost of a trip?
Divide the trip distance by your vehicle's mileage to get the litres of fuel needed, then multiply by the fuel price per litre. For example, a 300 km trip at 15 km/l needs 20 litres; at ₹100/litre that is ₹2,000. This tool does the maths for you and adds cost per km and a per-person split.
What mileage (km/l) should I enter?
Use your real-world mileage, not the showroom figure. Fill the tank, drive normally, refill, and divide the kilometres driven by the litres added. City driving is usually lower than highway. Typical Indian cars run 12–20 km/l, bikes 40–60 km/l — but your actual number gives the most accurate cost.
Does this work for miles, mpg and dollars?
Yes. Switch the unit toggle to Imperial and enter distance in miles, efficiency in miles per gallon (mpg) and fuel price per gallon in dollars. The results then show gallons needed, total cost in $ and cost per mile. All other features work the same.
How does the round-trip option work?
Ticking round trip simply doubles the one-way distance before calculating fuel and cost, so you see the total for going and coming back. Leave it unticked for a one-way journey.
How is the per-person share calculated?
The total fuel cost is divided equally by the number of people you are splitting with. It is handy for carpools and road trips so everyone chips in a fair amount. Set it to 1 if you are travelling alone.
Is this fuel calculator free and private?
Completely. It is free to use with no sign-up, and every calculation runs entirely inside your browser. Nothing you type — distance, mileage or price — is ever uploaded, stored or shared.

Free to use · works entirely in your browser · no account needed.