How Much Does a Gallon of Diesel Weigh?
Answer: 7.1 lbs. Or 113.6 oz. Or 3.22 kgs.
How did we find out?
The density of diesel is 53.11 lbs/ft3. Or 0.834 kgs/l. This is the same as 7.1 lbs per gallon. Which makes 1 gallon of diesel weigh 7.1 lbs (pounds). Or 113.6 oz (ounces).
If you want kilograms, then it’s about 3.22kgs.
Simple, right? If you want to know more, Wikipedia is your friend.