Where can I find my car's actual fuel efficiency?

Manufacturer specs give an official estimate, but for the most accurate figure track kilometers driven divided by liters used over a few fill-ups.

Does this account for highway vs. city driving?

Not automatically, enter a mileage figure reflecting the type of driving on your trip for the most accurate estimate.

Fuel Cost Calculator

Estimate the fuel cost for a trip based on distance and mileage

Distance (km)

Fuel Efficiency

km/L

Fuel Price

$/L

What is the Fuel Cost Calculator?

The Fuel Cost Calculator estimates how much fuel a trip will cost, based on the distance you're driving, your vehicle's fuel efficiency, and the current price of fuel. It's useful for budgeting a road trip, comparing the running cost of different vehicles, or splitting fuel costs fairly with travel companions.

How to Use the Fuel Cost Calculator

Enter the trip distance in kilometers.
Enter your vehicle's fuel efficiency in kilometers per liter (km/L) — check your owner's manual or recent fill-up records for an accurate figure.
Enter the current fuel price per liter.
Read the result — liters of fuel required, total trip cost, and the cost per kilometer.

Fuel Cost Formula

Fuel Required (L) = Distance (km) ÷ Fuel Efficiency (km/L)
Total Cost = Fuel Required × Price per Liter

Example Calculation

A 500 km road trip in a car that gets 15 km/L, with fuel priced at $1.60 per liter: Fuel required = 500 ÷ 15 = 33.33 liters. Total cost = 33.33 × $1.60 = $53.33, or about $0.107 per kilometer.

Tips to Reduce Fuel Costs

Maintain steady highway speeds — aggressive acceleration and braking noticeably lowers real-world mpg.
Keep tires properly inflated — under-inflated tires increase rolling resistance and fuel consumption.
Combine short trips — a cold engine uses more fuel per mile than a warmed-up one.
Remove excess weight and roof racks when not needed, since both reduce fuel efficiency.

Frequently Asked Questions

Manufacturer specs give an official fuel efficiency estimate, but real-world km/L varies with driving style, terrain and vehicle load. For the most accurate figure, track your actual mileage by dividing kilometers driven by liters used at your next few fill-ups.

Not automatically — enter a mileage figure that reflects the type of driving on your trip (city, highway, or a blended average) for the most accurate estimate, since fuel efficiency typically differs between the two.

This calculator is designed for gasoline or diesel vehicles measured in km/L. EV charging costs are calculated differently, based on cost per kilowatt-hour and the car's efficiency in km per kWh.

Results are estimates only — actual fuel cost depends on real-world driving conditions and current local fuel prices.