Fuel Cost Per Km Calculator

About this calculator

Fuel cost per kilometer converts a vehicle’s fuel consumption rate — usually expressed as liters per 100 km — into a direct cost per kilometer driven: cost per km = (consumption in L/100km × price per liter) ÷ 100. This turns an abstract efficiency number on a spec sheet into a figure you can actually budget with.

Commuters use this to compare the real running cost of different vehicles before buying, since a car with better fuel economy but a higher purchase price only pays off after covering enough kilometers. Delivery drivers and rideshare drivers use it to price trips accurately against their actual costs rather than guessing, and fleet managers rely on the same per-km figure, multiplied across many vehicles and routes, to forecast monthly fuel budgets.

Enter your vehicle’s fuel consumption and the price per liter, and this calculator gives you your exact cost per kilometer.