Any number you like.
A foot is a measure of length or distance while a cubic foot is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.
For example, the refrigerator could be 1ft x 2ft x 9ft or 18ft x 4ft x 3inches. Unlikely measurements but mathematically as valid.
The pool volume is 3.14 x 18 x 18 X 4/4 = 1017 cu ft - that's how much water you will need. 1017 cu ft = 7600 gallons
it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
You don't. You either A) convert 18 cubic inches into cubic feet, or B) convert 18 square inches into square feet. A... there are 1728 cubic inches in a cubic foot, so 18 cu in would be 0.00104 cu ft. B... there are 144 square inches in a square foot, so 18 square inches would be 0.125 sq ft.
20 cu feet
sq feet to sq yards cu ft to cu yards you need depth added to your sq ft to get cu ft such as 70 sq ft x 4 in deep = 23.33 cu ft =.086 cu yd
0.6 cu. ft.
18 cu ft
How many cubic feet is this model
20 cubic feet = 566,336.93 cubic centimeters.
797 cu yards = 797 * 33 cu feet = 21519 cu ft.
27 cu. ft. = 1 cu. yd.
100 cu ft × 2 = 200 cu ft.
If the dimensions given are inches, there are 49.11 cu. ft. If they are in feet there are 84,864 cu. ft.
The pool volume is 3.14 x 18 x 18 X 4/4 = 1017 cu ft - that's how much water you will need. 1017 cu ft = 7600 gallons
There are 27 cubic feet in a cubic yard.
it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
55.8 cu ft = 1.581 cu metres.