Know your fuel cost before you turn the key.
Free online fuel cost calculator for India — petrol, diesel, CNG & EV
Enter your distance, mileage, and fuel price. Get an instant cost breakdown — daily, monthly, yearly — and see how much you'd save on a different fuel type.
Trip details
Estimated cost
- Cost per km
- ₹5.81
- Daily (1 trip/day)
- ₹581
- Monthly (22 trips)
- ₹12,782
- Yearly (260 trips)
- ₹1,51,060
Estimates assume constant mileage and price. Actual cost varies with traffic, load, terrain, and driving style.
Side by side
Same trip, four fuel types. See what switching actually saves.
| Fuel | Avg. mileage | Price | Cost / km | 100 km trip |
|---|---|---|---|---|
| Petrol | 18 km/L | ₹104.50 | — | — |
| Diesel | 22 km/L | ₹92.30 | — | — |
| CNG | 26 km/kg | ₹76.00 | — | — |
| Electric | 6 km/kWh | ₹8.50 | — | — |
Updates live as you type above. The row for your selected fuel type uses your own mileage and price — the other three stay at national averages so you can compare.
A fuel cost calculator built for how Indians actually drive
Most people searching for a fuel cost calculator have one simple question: "how much will this trip actually cost me?" Zefince answers that in three inputs — distance, mileage, and fuel price — and returns an exact number, not a rough guess. Unlike a basic fuel cost calculator google search throws up, which usually handles one fuel type at a time, this is a fuel cost calculator india drivers can use as a proper trip fuel cost calculator india commuters and road-trippers both rely on — covering petrol, diesel, CNG, and electric vehicles in one place, with every number shown in rupees from the start.
How the trip fuel cost calculator works
The math behind any trip fuel cost calculator is simple, but getting a genuinely useful answer means doing it right. Enter your distance in kilometres, your vehicle's real-world mileage, and the current fuel price per litre (or per kg for CNG, per kWh for EVs). The calculator divides distance by mileage to get fuel required, then multiplies by price to get your trip cost — the same approach any reliable fuel cost calculator km india drivers use should follow. Toggle "round trip" if you're driving there and back, and the distance doubles automatically instead of you doing the math by hand.
From a single trip to your monthly fuel budget
A one-off number is useful, but most drivers want to know what fuel actually costs them over time. That's why this works as a monthly fuel cost calculator too — once you've entered your numbers, the result panel automatically projects daily, monthly (based on 22 working days), and yearly (260 days) cost from that same trip. If you commute the same route regularly, this turns a single calculation into a real budgeting figure you can plan around, rather than something you have to re-calculate by hand every time fuel prices change.
Compare petrol, diesel, CNG, and EV costs side by side
One thing most calculators get wrong: they only handle one fuel type, forcing you to repeat the whole process to compare options. This tool's comparison table shows what the same trip would cost across petrol, diesel, CNG, and electric simultaneously, updating live as you type your distance. If you're deciding whether to switch fuel types, or simply curious what you'd save with a CNG conversion or an EV, the cheapest option for your exact trip is highlighted automatically — no manual comparison spreadsheet required.
Built for accuracy, not just estimates
Fuel prices in India vary by state and city, and your vehicle's real mileage is almost always lower than the figure on the brochure. That's why every field here is editable — there are no locked assumptions. As a fuel cost calculator in rupees, it won't try to guess your city's price for you; enter your own vehicle's actual mileage (checked against your odometer and recent fill-ups, ideally) and today's local fuel price for the most accurate result. Full control means the number you get back reflects your actual car, your actual route, and today's actual price — not a generic national average dressed up as a personal answer.
Who this fuel cost calculator is for
Daily commuters checking what their drive to work really costs each month. Road-trippers planning a long drive and wanting a real number before they leave. Anyone comparing a new car's running cost against their current one. Delivery and cab drivers tracking fuel as a business expense. And anyone simply trying to understand, in rupees, exactly where their fuel money is going — this calculator is built to answer that clearly, instantly, and for free, every time.
FAQ
How is fuel cost calculated?
Divide your trip distance by your vehicle's mileage to get the fuel needed, then multiply by the price per litre (or kg, or kWh). For a 100 km trip at 18 km/L and ₹104.50/L, that's 100 ÷ 18 = 5.56 L, then 5.56 × ₹104.50 ≈ ₹581.
What mileage should I enter?
Use your vehicle's real-world average, not the manufacturer's claimed figure — actual mileage is usually 10–20% lower due to traffic, AC use, and load. If you're unsure, check your odometer and fuel receipts over a few fill-ups to find your true average.
Does this work for CNG and electric vehicles?
Yes. Switch the fuel type above and the units adjust automatically: km/kg and price per kg for CNG, km/kWh and price per kWh for EVs.
Why does the monthly figure use 22 trips?
22 reflects a typical commuter's working days in a month. It's a starting estimate — your actual frequency may differ, and the daily and yearly figures scale the same trip cost linearly so you can adjust the math in your head if needed.
Is this calculator accurate for long road trips?
It gives a solid baseline estimate. Real trip costs can vary with highway vs. city driving, elevation changes, traffic, and vehicle load — toggle round trip on for there-and-back journeys, and adjust mileage downward for hilly or stop-start routes.
How much will my trip cost in fuel?
It depends on three things: your distance, your vehicle's mileage, and the current fuel price. Rather than a single fixed answer, this fuel cost calculator works it out for your exact trip — just enter those three numbers above and the trip cost updates instantly. As a rough sense of scale, a 100 km trip in a petrol car averaging 18 km/L at ₹104.50/L costs about ₹581; your own number will differ based on your car and local fuel price.
Is this fuel cost calculator free to use?
Yes — it's completely free, with no signup, no account, and no limit on how many times you use it. Every calculation happens instantly in your browser.