The amount of fuel a plane uses per kilometer varies significantly depending on the type of aircraft.
Different aircraft models have drastically different fuel consumption rates. For example:
- ATR 72-600: Approximately 1.41 kg/km (5 lb/mi)
- Boeing 737-300: Approximately 3.49 kg/km (12.4 lb/mi)
- Boeing 737-600: Approximately 3.16 kg/km (11.2 lb/mi)
- Boeing 737-700: Approximately 3.21 kg/km (11.4 lb/mi)
Therefore, there isn't a single answer to how much fuel a plane uses per kilometer. It's highly dependent on the specific aircraft.