Fuel Cost Calculator

Estimate fuel cost for any trip from distance, mileage and fuel price.

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The short answer

A 300 km one-way trip in a car giving 15 km/l at ₹105/litre costs ₹2,100 in fuel — ₹4,200 round trip. Add tolls (~₹1.5–2/km on highways) for the true drive-vs-train comparison.

How to use the fuel cost calculator

  1. Enter distance and round-trip or not.
  2. Enter mileage and fuel price.
  3. See fuel needed and total cost.

Fuel Cost Calculator — FAQs

How do I calculate mileage?

Fill the tank, reset the trip meter, drive normally, refill: km driven ÷ litres filled = real mileage. Do it 2–3 times and average.

Does AC really affect mileage?

Yes — AC typically cuts mileage 10–20% in city driving, less on highways. It’s the single biggest controllable factor.

Drive vs train — which is cheaper?

Add fuel + tolls + parking, then divide by passengers. For 3–4 people, driving usually wins; solo, trains usually win.

Petrol vs diesel vs CNG?

Compare per-km cost: (fuel price ÷ mileage). Factor the vehicle’s price premium too — diesel/CNG cars cost more upfront.

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