Calculate L/100 km and km/L from distance travelled and fuel added at the next comparable fill.
Results are for information and preliminary estimation. For critical technical work, manufacturer data, local codes and qualified professional review take precedence.
L/100 km = liters used / km travelled × 100. km/L = km travelled / liters used. Comparable fill levels improve practical accuracy.
If 35 liters are used over 500 km, average consumption is 7.0 L/100 km.
Automotive estimates are highly sensitive to driving conditions. For consumption, tire sizing and charging, the vehicle manufacturer’s approved limits remain the final reference.
Trip-computer estimation, tire circumference and fill-level differences can create variation.
A multi-tank average usually gives a more stable real-world number.
How much will a trip cost in fuel?
→How much does it cost to charge an electric car?
→What will the trip cost including fuel, tolls and extras?
→How different are two tire sizes in diameter and indicated speed?
→Tell us if a calculation is unclear, incomplete or appears incorrect.