A gallon of coconut milk weighs 8.5 pounds.
One US gallon of coconut milk weighs 8 pounds 5 ounces.
The weight of one gallon of coconut oil is 7.7 pounds or 3.5 kilograms. In comparison, the weight of one gallon of milk is 9 pounds.
About 9 pounds
Nonfat milk is very close in density to water which weighs 8 pounds per gallon.
According to the movie "Clerks" the answer is about 7 pounds.
A cup of coconut milk is exactly the same size
"It should weight 8lbs, because you have 128 oz to one gallon and it takes 16 oz to make one pound. Not sure what the gallon itself weighs." NO! Liquid ounces do not equal weight ounces! I gallon of coconut oil is approximately 9 pounds.
Milk is nearly the same weight of water. Approx. 8.3 pounds.