The volume of a 100-foot diameter x 200-foot long cylinder is: 11,750,400 US gallons.
200 gallons. A gallon is a unit of volume.
200 Gallons of what? Gallon is an unit of volume, so to get the weight you need to know the density of the substance. 200 gallons of sawdust wouldn't weigh the same as 200 gal of water.
200 cubic feet is a volume of water equal to 1,496.1 US gallons.
The volume of a cylinder is equal to (pi)r2h, which is the area of the base times the height. The volume of this tank is about 3.14 x 62 x 2 which is 226.08 feet cubed. Now the cubic feet need to be turned into gallons. There are about 7.48 gallons in a cubic foot. 226.08 x 7.48 is about 1691.1, so there are about 1961.1 gallons in the tank.
The volume of the cylinder would be 200 x 10 = 2,000 cm3
200 gallons = 800 quarts.
200 gallons is 757.1 liters.
200 mL = 0.044 Imperial gallons
80 2.5-gallon measures make 200 gallons.
200 gallons of plain water weighs about 757.5kg