Determine the number of gallons of jet fuel to be weighed.
Select the conversion factor, determined by the type of fuel. For kerosene types of fuel, use 6.76 pounds per U.S. gallon. For wide-cut kerosene types of fuel, use 6.36 pounds per U.S. gallon. If you are uncertain of the fuel type, use the standard kerosene type fuel conversion, since the other type is rarely used.
Multiply the number of gallons by the conversion factor. As an example, a Boeing 747 holds 57,164 gallons of fuel. Multiplying this by 6.76 pounds per gallon gives you the total fuel weight of 386,429 pounds.
