What is the fuel capacity of a 737-800?

The fuel capacity of a Boeing 737-800 is approximately 20,000 kg, which aligns with the choice selected. This aircraft is commonly used for short to medium-haul flights and is designed to carry enough fuel for a range that typically suits such operational needs. The fuel tanks are specifically engineered to optimize weight and performance, ensuring efficient fuel consumption while maintaining operational flexibility.

Understanding fuel capacities is crucial for flight planning, as it directly influences factors such as range, weight calculations for takeoff, and overall flight efficiency. Factors that inform the maximum fuel capacity include design specifications and operational requirements, making the chosen answer of 20,000 kg not only correct but also an important aspect of the aircraft's operational profile.