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Fuel Cost Calculator

Calculate petrol, diesel or CNG trip cost, fuel required and cost per kilometre - with current Indian fuel prices pre-filled.

Enter Trip Details
Reference

Typical Mileage by Vehicle Type

Vehicle TypeCity MileageHighway MileageFuel
Small Hatchback (Alto, WagonR)18–22 km/l22–25 km/lPetrol
Mid Sedan / SUV (City, Creta)12–17 km/l18–22 km/lPetrol
Diesel Compact SUV14–18 km/l20–26 km/lDiesel
Large SUV / MUV8–12 km/l12–16 km/lDiesel
CNG Car (Wagon R, Ertiga)22–28 km/kg28–35 km/kgCNG
Petrol 2-Wheeler (125cc)45–60 km/l55–70 km/lPetrol
Trip Planning

Calculate total fuel cost before a road trip to budget accurately - avoid surprises at the pump on long drives.

Compare Fuel Types

Run the same trip on petrol, diesel and CNG to see which is cheapest for your specific distance and vehicle.

Monthly Fuel Budget

Multiply your daily commute cost to find your monthly fuel spend and identify how much you'd save switching to CNG or EV.

FAQ

Frequently Asked Questions

Fuel cost = (Distance ÷ Mileage) × Fuel price. Example: 300 km at 15 km/l with petrol at ₹100/litre = (300 ÷ 15) × 100 = ₹2,000. Our calculator handles petrol, diesel and CNG with current prices pre-filled.

Small hatchbacks deliver 20–24 km/l; mid-size sedans/SUVs 15–20 km/l petrol or 20–26 km/l diesel; CNG cars 25–35 km/kg. Highway mileage is typically 15–25% better than city mileage. Use your real-world experience rather than ARAI-claimed figures for better accuracy.

As of 2025, petrol is approximately ₹94–₹106/litre and diesel ₹87–₹94/litre depending on city and state taxes. CNG ranges from ₹75–₹90/kg in major metros. Prices are revised daily - check your local OMC app for exact current rates and update the calculator accordingly.

Maintain 60–80 km/h on highways for best efficiency; keep tyre pressure correct (under-inflation cuts mileage 10%); use cruise control; limit AC on low-speed stretches; service your engine regularly; remove excess load. Carpooling also significantly cuts per-person fuel cost.

Yes - CNG is typically 50–60% cheaper per km. A CNG car at 28 km/kg with CNG at ₹80/kg = ₹2.86/km. Petrol at 15 km/l at ₹100/l = ₹6.67/km. The trade-off is shorter range per fill and boot space lost to the cylinder.

Cost per km = Fuel price ÷ Mileage. It lets you compare vehicles, plan trip budgets, decide between driving and public transport, and evaluate EV savings. ₹5/km means a 100 km round trip costs ₹500 in fuel. Fleet operators and delivery companies use this metric to price logistics.