Mileage Calculator
Calculate your vehicle's fuel efficiency from distance and fuel used.
Assumptions used in this calculation
- Full-tank-to-full-tank measurement: Assumes the fuel used figure you enter accurately reflects consumption over the matching distance; partial refills or an inaccurate trip meter will skew the result.
About this calculator
Vehicle owners often rely on the manufacturer's advertised mileage figure, but that number is measured under controlled test conditions and rarely matches real-world driving with traffic, AC use and varied terrain. This calculator finds your actual fuel efficiency by dividing distance travelled by fuel used, giving a straightforward km/litre figure from a full-tank-to-full-tank measurement you take yourself. It's the practical way to track whether your car or bike's efficiency is dropping over time (a sign of overdue servicing), to compare mileage across different driving conditions like city versus highway, or to see how close you're running to the vehicle's rated figure. Doing this by hand is simple arithmetic, but people often mismeasure fuel used from a partial fill or misread the trip meter, this calculator just keeps the two numbers you supply and the resulting ratio clear and consistent.
Worked example
450 km using 30 litres
Result: Mileage = 15 km/l
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