How Many Pounds Of Cooked, Diced Potatoes Makes A Gallon?

For this conversion first of all you should know that
1Litre = 1 Kg of mass
1 Kg = 2.2 pounds
1Litre = 0.26 gallons
As 1Kg and 1Litre are equal, so 1Kg = 0.26 gallons
That would mean that 2.2pounds are equal to 0.26 gallons
and 5 pounds are equal to = (5 x 0.26)/2.2 => 0.59 gallons or almost 0.6 gallons