Fuel Cost Calculator
This fuel cost calculator works out how much a trip or a year of driving will actually cost, based on the distance you'll cover, your vehicle's real-world fuel efficiency, and the current price of fuel. Enter your numbers to see the total cost, how much fuel you'll need, and the cost per km — useful for budgeting a road trip, comparing two vehicles, or estimating your annual driving cost before deciding whether to buy or lease.
The total km for the trip, or your typical annual km if you are estimating a yearly fuel budget.
Your vehicle's real-world km/l — city driving typically runs 10–20% below the manufacturer's ARAI-rated figure.
The current price you pay at the pump. Petrol and diesel prices vary by state and city, so check today's local price rather than guessing.
Total fuel cost
सेव करने के लिए लॉग इन करें₹1,00,000
What you'll actually spend on fuel for the distance entered — e.g. ₹1,00,000/year driving 15,000 km at 15 km/l with ₹100/litre fuel.
The volume of fuel required — useful for planning fuel stops on a long trip or checking your tank capacity.
The best number for comparing vehicles — a pricier-to-fuel car can still cost less per km if it's more efficient.
Frequently asked questions
How do I calculate fuel cost for a road trip?+
Divide the total trip distance by your vehicle's real-world km/l to get litres needed, then multiply by the price per litre. A 500 km trip at 15 km/l with ₹100/litre fuel costs about ₹3,333 — use the calculator above for your exact numbers.
Why is my actual fuel cost higher than the manufacturer's km/l suggests?+
ARAI ratings are measured under ideal test-track conditions. City driving, traffic, air conditioning, cargo load and aggressive acceleration can all cut real-world km/l by 10–20% or more below the certified figure — always budget using a real-world km/l, not the label.
How much does driving style affect fuel cost?+
Significantly — aggressive acceleration and braking can cut fuel efficiency by 15–30% in stop-and-go traffic, and highway speeds above roughly 100 km/h increase aerodynamic drag enough to noticeably reduce km/l. Smooth, moderate-speed driving is the single biggest free lever on fuel cost.
Is an electric vehicle cheaper than fuel per km?+
Usually yes on a pure energy-cost basis — electricity is typically cheaper per km than petrol or diesel, though the comparison depends heavily on local electricity tariffs and fuel prices. This calculator covers petrol/diesel vehicles; compare your local per-unit electricity price and vehicle efficiency (km/kWh) separately for an EV.
How do I estimate my annual fuel budget?+
Use your typical annual km (check your last two service records and subtract the odometer readings) as the distance, your real-world km/l, and an average fuel price across recent months rather than today's price alone, since prices fluctuate through the year.