Fuel Calculator
Calculate fuel economy, estimate a trip cost, find your driving range or check the fuel cost of each kilometre.
How to measure fuel economy accurately
For a practical km/L figure, fill the tank or add a known amount of fuel, record the distance travelled, then use the amount spent and the fuel price to work out how many litres were used. The longer the distance, the less a small filling or odometer error affects the result.
Fuel economy formula
Fuel economy (km/L) = Distance travelled ÷ Litres used
CalcMate also shows litres per 100 km and fuel cost per kilometre, which can be easier to compare between vehicles or trips.
Trip cost formula
Trip cost = Fuel required × Price per litre
What can change real fuel consumption?
Traffic, tyre pressure, vehicle load, air conditioning, road gradient, driving speed and engine condition can all affect fuel use. For that reason, this calculator should be treated as an estimate based on the values you enter.
Frequently asked questions
Yes. A higher km/L figure means the vehicle travels farther on each litre of fuel.
It shows how many litres are used to travel 100 km. Unlike km/L, a lower L/100 km value means better fuel economy.
Yes. The calculations use the numeric price and amount you enter, so the same currency is carried through the cost results.
Fuel consumption naturally changes with traffic, route, weather, driving style and how accurately the fuel amount and distance were measured.