to measure the cubic feet of a box you measure the dimensions (length, width and height)
in inches multiply them together and then divide them by 1728 and you will get the cubic feet
Volume in cubic feet = Length in feet * Width in feet * Height in feet.
A 14x14x20 inch box has a volume of about 2.3 (2.268519) cubic feet.
Cubic feet x 28.3168 = liters
Formula: Cubic feet x 7.48052 = gallons.
1 liter = 0.0353146667 cubic feet
Use this formula: liters x 0.0353 = cubic feet
Cubic inches in a box = volume of box (in cubic inches) = Length * Breadth * Height, where each of these three is given in inches.
Formula: cubic feet x 7.481 = US gallons
1 cubic meter = ~35.31 cubic feet 160,000 * 35.31 = ~5,650,000 cubic feet
-- take the number of cubic feet -- multiply it by 0.028317 -- the result is the number of cubic meters (rounded)
9 seems the easy answer
Cubic feet is a measure of volume while square feet is a measure of area. They do not directly convert.