How much does one gallon of average fuel weigh?

One gallon of average aviation fuel weighs approximately 6 pounds. This value is based on the general density of aviation fuels, which typically ranges around 6 to 7 pounds per gallon, depending on the specific type of fuel. For example, Jet A fuel, which is commonly used in turbine engines, has a density of approximately 6.5 to 7.0 pounds per gallon at 60 degrees Fahrenheit.

Understanding the weight of fuel is crucial in aviation, particularly for calculating aircraft performance, load distribution, and fuel requirements. Proper knowledge of fuel weight allows pilots and maintenance personnel to make accurate calculations related to takeoff and landing weights, as well as fuel burn rates during flight. This ensures the safety and efficiency of flight operations.