How much does jet fuel weigh per gallon?

Jet fuel typically weighs about 6.7 pounds per gallon. This weight can vary slightly depending on the specific type of jet fuel and its temperature, but 6.7 pounds is a widely accepted average for Jet A fuel, which is commonly used in commercial aviation. Knowing the weight of jet fuel is crucial for flight planning and performance calculations, as it affects the total weight of the aircraft, fuel load, and overall efficiency. This understanding allows pilots and flight engineers to ensure compliance with weight limits and optimize fuel usage for safe operations.