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Fuel Cost Calculator

Estimate how much your trip will cost in fuel based on distance, mileage, and fuel price.

Trip details

Fuel Efficiency Units

A fuel cost calculator is useful for road trips, delivery planning, commuting budgets, and comparing vehicles with different mileage. Users often search for trip fuel cost, gas cost for a drive, or petrol cost per kilometer before a long journey.

km/L means higher is better. L/100km means lower is better. MPG is commonly used in the US and UK, while km/L and L/100km are more common elsewhere.

For example, a car doing 15 km/L over 300 km uses 20 litres of fuel. Multiply that by the fuel price to estimate the trip cost.

Common Questions

How is trip fuel cost calculated?+

Fuel needed is based on distance and efficiency, then multiplied by fuel price per liter to estimate total cost.

Which efficiency unit should I use?+

Use the unit your vehicle reports, such as km/L or L/100km, and keep distance and price units consistent.

Does this include tolls or parking?+

No. This tool estimates fuel-only cost. Add tolls, parking, and maintenance separately.

Can I compare two vehicles for a route?+

Yes. Run separate scenarios with each vehicle's mileage to compare expected fuel spend.