Fuel Cost per Kilometre

A van spends $1,500 on fuel and drives 5,000 kilometres over a month, so its illustrative fuel cost per kilometre is $0.30 in the same currency. The measure helps track fuel spending relative to activity.

Geotab's fleet KPI guide places fuel alongside other variable costs but distinguishes total cost of ownership, which also includes fixed items, so fuel cost per distance is narrower than full operating cost per distance. The US Department of Energy vehicle calculator methodology uses fuel economy, prices and driving patterns to estimate costs, and real-world routes and a business's fuel prices can differ from default assumptions.

Set the scope first, because a single van, a vehicle class and a whole mixed fleet answer different questions, and state whether idle fuel, generator use and off-road operation are included. Use reliable distance, since odometer readings, telematics or trip logs can supply kilometres but errors and missing records distort the denominator, so check implausible jumps.

Match fuel spend and distance periods, since a vehicle may fill its tank on the final day of a month but use that fuel next month and short windows can produce unstable ratios. For precise consumption accounting, reconcile opening and closing tank estimates when practical, and for routine management acknowledge timing noise and use longer rolling windows.

Account for different fuel types too, as petrol, diesel and electricity have different pricing and units, so if the business includes charging, label the measure energy cost per kilometre instead of fuel-only cost. Keep currency consistent, because cross-border purchases and exchange rates can change reported costs, so choose a conversion date and explain it.

Compare similar duties, since stop-start urban deliveries burn fuel differently from a steady highway route and heavy loads, hills, air conditioning and driver behaviour also matter. Separate price and efficiency, because a rising ratio can come from higher pump prices even when litres per 100 kilometres stay unchanged, so track both to understand the cause.

A second view is litres per 100 kilometres, calculated as litres consumed divided by distance times 100, which describes consumption, not money. Combining it with price per litre can estimate fuel cost per kilometre: a vehicle using 10 litres per 100 kilometres at $3 per litre costs about $0.30 per kilometre for fuel, and the result changes if actual price or consumption changes.

Watch idling, since fuel burned while stationary increases cost without increasing distance, and a route with unavoidable waiting may need process changes rather than blaming a driver. Check maintenance, as underinflated tyres, neglected service or a fault can raise consumption, so investigate before attributing every change to driving behaviour.

Use trip context, because detours, traffic and delivery density affect kilometres per completed order and fuel cost per kilometre alone does not tell whether the route served customers efficiently. Report numerator and denominator, as a figure of 0.30 based on 100 kilometres is less stable than one based on 100,000, and do not use the measure as the full delivery price, since driver wages, insurance, depreciation, repairs, tolls and overhead need separate treatment, while fuel-card data should be cleaned of nonfuel items, refunds or purchases for a different vehicle before calculation.