About 16.
22.032 gallons (rounded)
1 gallon = 231 cubic inches. Multiply L X W X H (in inches) to get cubic inches, then divide by 231 to get gallons. 179.53 gallons
If this is a round pool that is 27 feet across by 52 inches tall and you fill it with 4 feet (48 inches) of water, the total volume would be 17,204 gallons of water.
A cylinder 30 inches in diameter and 48 inches tall will have a volume of 33929 cubic inches. V=PI*r*r*H (V=3.1416*15*15*48) That volume is equal to 146.9 gallons (USA). (1 gal = 231 cubic inches)
About 16.
If you don't know the calculation, then how about you just use a kitchen measuring jug to fill the barrel and then you will know exactly how much water you have in there.
117 gallons
The formula for the volume of a cylinder is pi * r^2 * h. A cylinder of the specified dimensions would have a volume of very close to 4000 cubic inches. There are 231 cubic inches in a gallon, so that works out to slightly under 17 and a third gallons. That's a rather tall and skinny "barrel", by the way.
22.032 gallons (rounded)
200.7
7 gallons
Assuming it is a rectangle, 8.485 US gallons
The total volume is 26 649 cubic inches.Transformed in gallons equals 115,3636 gallons.
411.4 US gallons, approx.
1 gallon = 231 cubic inches. Multiply L X W X H (in inches) to get cubic inches, then divide by 231 to get gallons. 179.53 gallons
72 gallons.