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Fuel Cost Calculator

Calculate trip fuel cost in seconds

Trip Details

Trip Cost

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Distance---
Fuel Needed---
Cost per km---
Round Trip Cost---

How Fuel Cost is Calculated

Trip fuel cost depends on three factors: distance, vehicle mileage (fuel efficiency), and fuel price. This calculator gives you instant cost estimates for any trip.

Fuel Needed = Distance (km) / Mileage (km/l)
Total Cost = Fuel Needed x Price per liter

Working out what a trip costs in fuel

Fuel cost = (distance ÷ mileage) × price per litre. A 500 km drive in a car returning 18 km/l at ₹95 a litre costs 27.8 litres × ₹95 = about ₹2,640 one way.

The three formulas

Realistic mileage by vehicle type

VehicleCity (km/l)Highway (km/l)Cost per km at ₹95/l
110cc commuter motorcycle55–6565–75₹1.4–1.7
150cc motorcycle40–4545–50₹2.0–2.4
125cc scooter38–4542–48₹2.1–2.5
Small hatchback, petrol15–1820–22₹4.3–6.3
Compact sedan, petrol13–1618–21₹4.5–7.3
Compact SUV, petrol11–1416–18₹5.3–8.6
Compact SUV, diesel15–1820–23₹3.9–5.9
Hybrid hatchback / sedan22–2724–28₹3.4–4.3
CNG hatchback26–30 km/kg30–33 km/kg₹2.6–3.4 at ₹85/kg
7-seat MPV, diesel13–1617–20₹4.4–6.5

Worked example — Delhi to Jaipur and back

281 km each way, 562 km round trip, petrol SUV at 14 km/l, ₹95.4/l

562 ÷ 14 = 40.1 litres

40.1 × 95.4 = ₹3,829 in fuel

Add NH-48 tolls of roughly ₹700 each way

About ₹5,200 for the round trip — ₹9.3 per km all-in, or ₹1,300 a head split four ways.

Mileage is a measurement, not a spec sheet number

The figure printed in a brochure comes from a standardised lab cycle (India moved to the MIDC-based cycle and, for newer certifications, to a WLTP-derived procedure). Real-world numbers land 15–30 % lower. The honest way to know your own is the tank-to-tank method: fill to the automatic click, zero the trip meter, drive normally for at least 250 km, refill to the click at the same pump, then divide the trip distance by the litres it took. Repeat over three tanks and average — one tank is noise.

What actually moves your fuel bill

More questions people ask

How do I calculate fuel cost for a trip?

Divide the trip distance by your vehicle’s real-world mileage in km per litre to get litres, then multiply by the current price per litre. For a return trip, double the distance before you start.

How do I find my car’s actual mileage?

Fill the tank to the automatic cut-off, reset the trip meter, drive at least 250 km in your normal pattern, then refill to the cut-off at the same pump. Trip kilometres divided by litres added is your true mileage. Average three tanks.

Is diesel still cheaper to run than petrol?

Per kilometre usually yes, because diesel engines return 20–30 % better mileage and the fuel is priced slightly lower in most states. But the diesel variant costs more to buy and more to service, so the break-even is typically somewhere around 15,000–20,000 km a year.

Does CNG work out cheaper?

On running cost, clearly — a CNG hatchback often costs under ₹3 per km against ₹5–6 for the petrol version. The trade-offs are boot space taken by the cylinder, a small power drop, and refuelling queues outside the metros.

Does driving with the AC off save fuel?

In slow city traffic, yes, by around 5–10 %. On a highway it reverses: open windows at 100 km/h add enough aerodynamic drag to cost more than the compressor does.

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Frequently Asked Questions

How to calculate fuel cost for a trip?
Fuel Cost = (Distance / Mileage) x Fuel Price. For example, 500km trip with 15km/l mileage at \u20B9105/l costs \u20B93,500.
What is the average mileage in India?
Small cars: 15-20 km/l, Sedans: 12-16 km/l, SUVs: 8-14 km/l, Bikes: 40-60 km/l.
Petrol vs Diesel cost comparison?
Diesel cars have better mileage (20-30% more) and diesel is cheaper. But diesel cars cost more upfront. Break-even is usually 15,000-20,000 km/year.

Answers, not just a number

Short, exact answers to the questions people ask alongside this tool — the number first, then the working.

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