Kilometers-per-liter (km/l) is a unit of measurement used to quantify the fuel efficiency of a vehicle. It denotes the distance traveled in kilometers on one liter of fuel consumed by the vehicle's engine. A higher km/l value indicates greater fuel efficiency, meaning the vehicle can travel a longer distance per unit of fuel consumed. This metric is commonly employed in regions that utilize the metric system for measuring fuel efficiency, providing a convenient and standardized method for comparing the fuel efficiency of various vehicles. As an important factor in both cost-saving and environmental considerations, km/l is often considered by consumers when selecting vehicles or assessing driving habits.