About 8.35 pounds.
about 4kg
About 6.25 pounds per gallon at 72 degrees Fahrenheit.
Assuming you mean "212 degrees Fahrenheit and at sea level". 15.991 ounces, or almost exactly one pound.
The specific gravity of diesel is .83 to .876 at 60 degrees Fahrenheit. That would make it 6.64 to 7.008 pounds per gallon.
Weigh an empty container; pour a gallon of water into it. Weigh it again. Calculate the difference. That is the weight of the gallon of water.
A US gallon of gasoline weighs approximately 6.3 pounds.
A gallon of water weighs about 8.34 pounds. So, a 50 gallon water heater full of water would weigh approximately 417 pounds.
About 8.35 pounds per US gallon.
A gallon of water weighs approximately 8.34 pounds.
A gallon of water weights 8 pounds. It can vary a bit according to temperature.
Volume and weight are different kinds of things, and one does not convert into the other. That is because different fluids have different density. A gallon of water does not weigh the same as a gallon of gasoline.
== Probably close to the weight of water. 8.34 lbs per gallon.