Perhaps you are just wanting to get an idea of how big that is. According to this reference, Olympic-size (8 lane) pools are 25 meters wide by 50 meters by 2 meters deep. This is 2,500 cubic meters.
Perhaps you have seen swimming competitions in person or on TV. That should give you an idea of the scale. But like mehtamatics said, you want around 2 million cubic meters. We would need 800 Swimming Pools of that size to equal 2 million cubic meters. That should give you an idea. (sorry about the scaling error on my first answer).
It will hold 538.6 US gallons of water.
To cover 144 sq ft with soil to a depth of 6 inches, you would need 72 cubic feet of soil. This can be calculated by multiplying the area (144 sq ft) by the desired depth (6/12 ft) to get the volume in cubic feet.
There are 6 feet in 72 inches. Since 1 foot is equivalent to 12 inches, dividing 72 inches by 12 inches per foot gives you 6 feet.
24 yards is equal to 72 feet because 1 yard is equivalent to 3 feet.
A room 20 feet long by 14 feet wide has an area of 280 square feet. 20 ft x 14 ft = 280 ft2 A room 20 feet long and 14 feet wide and 8 feet high has a volume of 2,240 cubic feet. 20 ft x 14 ft x 8 ft = 2,240 ft3
72 cubic feet
If the given dimensions are in feet then 4*4*72 = 1152 cubic feet
72 liters is 19.02 US gallons or 2.54 cubic feet.
72 cubic feet
It will hold 538.6 US gallons of water.
There are about 184320 quick feet from 72 in by 128 in by 20 in.
3 feet 3*4*6 = 72 cubic feet
72 cubic feet
8 feet = 96 inches5 feet = 60 inchesVolume = 72" x 96" x 60" = 414,720 cubic inches = 240 cubic feet = 88/9 cubic yards(roughly 1,795.3 gallons)
Sand needed: 8*6*1.5 = 72 cubic feet
The height of the cube (crate) is: 4.16 feet
12 ft * 72 ft * 12 ft = 10368 cubic feet.