Fuel Cost Calculator

Runs in your browserCalculators#Travel

Trip cost for petrol, diesel, CNG or electric cars, with tolls, cost per km and a per-person split.

Fuel

Distance (one way)

Round tripDoubles the distance for the drive back.

Mileage

In km per litre.

Petrol price

Tolls and parking

Optional, for the whole trip.

People sharing

Trip cost₹2,00020 litres at ₹100 per L

Distance: 300 km
Petrol needed: 20 litres
Fuel cost: ₹2,000
Fuel cost per km: ₹6.67

How to use, limits & privacy

About Fuel Cost Calculator

Estimate what a road trip costs in petrol, diesel, CNG or electricity. Enter the distance, your vehicle's mileage and the fuel price, add tolls and parking, and split the cost between the people travelling. It also shows how much fuel you need and the running cost per km, so you can compare vehicles. It runs in your browser.

How to Use

Choose the fuel

Pick Petrol, Diesel, CNG or Electric. A typical price and mileage are filled in; replace them with your own.

Enter the trip

Type the one-way distance in km or miles and turn on Round trip for the drive back.

Check mileage and price

Enter mileage in km/L (or L/100 km or US MPG), km/kg for CNG, or km/kWh or kWh/100 km for an electric car, then the price per litre, kg or kWh.

Add the extras and split

Add tolls and parking for the whole trip and the number of people sharing. The trip cost and each person's share update as you type.

Privacy & Processing

Mode: local
Files Leave Browser: Local tool processing; review details below
Max Input Size: Device memory limits
Account Required: No
Data Stored Locally: Nothing is saved; the default values return when you reload the page.
Network Processing: Assets or models may require an initial download

Everything is calculated in your browser. Nothing you enter is sent to a server.

Rules & Limitations

Fuel prices are per litre (petrol and diesel), per kg (CNG) or per kWh (electricity). With US MPG, fuel is converted from US gallons to litres.
The filled-in prices and mileage are only typical values. Prices differ by city and change often, so enter today's price.
Real mileage depends on traffic, speed, load and air conditioning, so treat the result as an estimate.
Mileage must be above 0. Switching a unit converts the number already entered.

Top Suggestions

Budgeting a road trip or a daily commute
Splitting fuel and toll costs with friends
Comparing the running cost of petrol, CNG and electric cars
Checking what a cab or delivery route costs in fuel

Fuel Cost Calculator FAQ

How do I calculate the fuel cost for a trip?

Divide the distance by your mileage to get the fuel needed, then multiply by the fuel price. A 300 km trip at 15 km/L needs 20 litres; at ₹100 a litre, that is ₹2,000.

How do I calculate the cost per km of my car?

Divide the fuel price by the mileage. Petrol at ₹100 a litre and 15 km/L costs about ₹6.67 per km. The calculator shows this as fuel cost per km.

How do I work out the charging cost of an electric car?

Choose Electric, enter the efficiency in km/kWh (or kWh per 100 km) and the price per kWh. At 7 km/kWh and ₹8 per kWh, a 140 km trip costs ₹160. Public fast chargers usually cost more per kWh than home charging.

What is the difference between km/L and L/100 km?

km/L is how far one litre takes you, and higher is better. L/100 km is how many litres you need for 100 km, and lower is better. 15 km/L is the same as 6.67 L/100 km.

Is my trip information sent anywhere?

No. The calculation runs in your browser and nothing is uploaded or saved.