Smart Petrol Cost Calculator Per KM

Introduction – A quick story for you, A few months ago, a good friend of ours, Mr Rohit, planned a road trip from road trip from Delhi to Rishikesh with his family.

He packed bags, booked a stay, and set off with his Maruti Baleno Petrol (fuel type), but halfway through the trip, a reality check hit him — he had not planned fuel costs at all.

When toll booths and petrol stops started piling up the expenses, he realised the trip was going to be far costlier than he thought. At one point, he even said, “If it is a CNG Car or EV Car, I can save a lot”

That moment, I feel – this is not just Rohit’s problem, almost every indian driver asks the same thing before any trip –

  • Is Petrol cheap or CNG?
  • My car gives 10 kmpl mileage. How much petrol do I need for the trip?

That’s why we created the Ease Petrol Cost Calculator — free, India-first, and no logins or downloads needed.

What Do You Mean by Petrol Cost in India?

The petrol cost is not just the price you have to pay per litre. But in real life, it means how much you are spending every kilometre to drive your car, bike, and other vehicles. It works whether it’s a quick office commute, a weekend getaway, or a daily school drop-off.

In India, where Petrol prices vary by city, due to state tax, and multiple factors, as per the News18 Report on May 31, 2025, Crude Oil Prices, exchange rates, and Refining Costs are the Key Factors Influencing Fuel Prices in India.

Also, fuel cost depends on car mileage differs across brands, and fuel types include petrol, diesel, CNG, and now electric – knowing your exact cost per km or trip is no longer optional. It’s smart planning.

How Does Petrol Cost per Km Work?

The typical formula to calculate petrol cost is quite simple, you can use a pen and paper and use this formula on notebook to find –

Petrol Cost Formula = Distance (km) ÷ Mileage (km/l) × Fuel Price (₹/l)

But reality is different, real life isn’t basic. You also have to think about:

  • Toll charges
  • Extra charges like parking, or AC usage in summer
  • Custom city prices (not every city matches the national average)
  • Actual vs ARAI claimed mileage (because that brochure number is never real!)

Here are the Components and Factors That Affect the Cost of your trip

FactorDescription
Fuel TypePetrol, Diesel, CNG, EV – each has a different per-km cost
Petrol, Diesel, CNG, EV – each has a different per-km costPetrol in Mumbai costs more than in Chandigarh or Noida
Car TypeHatchbacks are more fuel-efficient than SUVs
Traffic ConditionsCity traffic eats more fuel than highway cruising
AC UsageAffects mileage by 5–10%
Driving StyleAggressive driving = lower mileage
Toll RoadsAdds to total cost, especially on highways
Distance TravelledLonger trips may offer better mileage than daily short runs

Example: Fuel Cost Table (100 km Trip)

Let’s assume fuel prices in Delhi:

Fuel TypePrice/litreMileage (km/l or equivalent)Total Fuel Cost
Petrol₹96.7215 km/l₹645
Diesel₹89.6220 km/l₹448
CNG₹76.0028 km/kg₹271
EV₹1.5/unit6 km/unit₹25 (approx)

Note: These are just sample prices. Actual prices vary and can be customised in the tool.

What Is a Petrol Cost Calculator?

petrol cost calculator india

The Ease Petrol cost calculator is a smart, non-subscription-based online tool made just for indian drivers and mindset.

It helps you figure out:

  • How much petrol will your car consume
  • How much will the entire trip cost in india?
  • Which fuel type is cheaper for your journey
  • How much are you spending per kilometre

All this without login, payment, or downloading anything.

Whether you drive a Maruti, Hyundai, Tata, or Toyota, this tool works with every car and every city in India.

What are the features?

  1. Auto City-Based Fuel Prices – It pulls live petrol, diesel, or CNG prices based on the city you select, but prices change every day, so we recommend you to set a custom price.
  2. Car-Based Mileage Detection – Choose your car type, and it auto-fills average mileage for that category.
  3. Compare Fuel Types – See which is cheaper for your route: petrol, diesel, CNG, or EV.
  4. Save Calculations – Save your results so you don’t have to repeat the same inputs.
  5. Export as CSV – Download your trip cost breakdown in a neat spreadsheet format.
  6. Toll and Extra Charges – Include tolls, parking, or food expenses easily in the final cost.

How to Calculate Petrol Cost Per km

To calculate online for free, follow the steps –

  1. First, you have to visit Easemoney india
  2. Go to Menu > Resources > Tools > Petrol Cost Calculator
  3. Enter your car name
  4. Select fuel type (default is Petrol)
  5. Choose your city
    • Automatically fetches the current fuel price for that city
    • Price may fluctuate – use Set Custom Fuel Price if needed
    • City not listed? Just Add Custom City
  6. Enter your distance in kilometres
  7. Select your car type
    • Hatchback, Sedan, Premium Sedan, SUV, MUV
    • Mileage is auto-filled, but you can Set Custom Mileage too
  8. Enter Toll Price (optional)
  9. Tap Add Additional Charges (optional)
  10. Hit the Calculate button to get results –

Sample Calculation Example (100 km Petrol trip in Delhi)

  • Fuel Price: ₹96.72/litre
  • Mileage (auto or custom): XX km/l
  • Petrol Consumed: XX litres
  • Base Petrol Cost: ₹XXXX
  • Toll + Extra Charges: ₹XXX (if any)
  • Total Journey Cost: ₹XXXX

Petrol cost calculation using a Formula

If you want to calculate using the formula, it is super simple, once you know your car’s mileage and fuel price.

  • Put this formula – Petrol cost per km = Fuel Price per litre ÷ Mileage (km/l)
  • Example: Fuel price: ₹96.72 per litre and Your Car Mileage: 15 km/l
  • The Answer: Petrol cost per km = ₹96.72 ÷ 15 = ₹6.45/km
  • That means for every kilometre you drive, you’re spending ₹6.45.

How to Plan a Trip by Petrol car and find the total cost

Planning a road trip by petrol car in India has now become easier, just follow the steps –

  1. Visit: Go to easemoney.in > Menu > Resources > Tools > Petrol Cost Calculator
  2. Tap on “Trip Planner” – This opens the dedicated section for round trips and multi-segment travel.
  3. Enter Your Car Name – Helps in identifying the vehicle for your reference (e.g., Swift, Nexon, Creta).
  4. Enter Trip Segment 1:
    • From: e.g., Delhi
    • To: e.g., Agra
    • Distance: e.g., 245 km
  5. Want to Add a Return or Another Trip?
    • Tap on “Add Segment”
    • Example: Agra to Delhi – again 245 km
  6. Enter Vehicle Type – Choose from Hatchback, Sedan, SUV, MUV, Premium Sedan, etc.
  7. Set Custom Fuel Price – Don’t worry if your city price isn’t listed. Just enter your own rate (e.g., ₹95.86 per litre).
  8. Set Custom Mileage – If you know your actual mileage (e.g., 15 km/l), enter it for more accurate results.
  9. Optional: Enter Toll Price or Additional Charges (like parking or food stops).
  10. Tap “Calculate Trip Cost by Petrol” – And you’re done!

Get Results Like:

Trip Overview: Delhi to Delhi (490 km round trip)

  • Average Fuel Price: ₹95.86/litre
  • Mileage (Efficiency): 15 km/l
  • Total Fuel Consumption: 32.67 litres

Segment Details:

SegmentDistanceCost
Delhi → Agra245 km₹1,579.76
Agra → Delhi245 km₹1,551.67

Total Journey Cost: ₹3,131.43

And if you added tolls or other expenses, that would be included too — all in one clear view.

FAQs

  • How many litres of petrol per km?

    Usually, one litre of petrol gives around 10 to 20 km, depending on the car type and driving conditions. So, reverse it: 1 ÷ mileage = litres per km.

  • How many litres is ₹800 of petrol?

    It’s quite simple, you need to divide Rs. 800 by the petrol price. let take an example – ₹800 ÷ your city price of petrol is ₹96.72 = so, your total 8.27 litres.

  • How to calculate 1 litre per km?

    Here is a simple example: If your car consumes 1 litre every KM, it means your car’s average is just 1 km/l, which is extremely low. In India, Most cars easily give mileage up to 10–25 km/l.

  • Fuel consumption calculator by car model?

    For finding the consumption of fuel, you can use our tool, select your car type and fuel, and it auto-calculate based on the car category. You can also set a custom mileage.

We built this for real Indian drivers like you, We hope you like it. You can bookmark the tool for future trips, and share it with your friends or family who drive. Also, give us feedback – we are always improving!

Explore more such amazing tools at Easemoney here –

Disclaimer: Fuel prices may change and may not always reflect the live market rate. Always cross-check or use the “Custom Fuel Price” option for accuracy.

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