Cubic feet = length x width x height. Enter dimensions in feet or inches and get volume in cubic feet, cubic yards and cubic inches instantly.
1 cubic yard = 27 cubic feet. 1 cubic foot = 1,728 cubic inches.
Cubic feet = length (ft) x width (ft) x height (ft). If your dimensions are in inches, divide each by 12 before multiplying, or use the inches input above and the calculator converts automatically.
Cubic feet come up constantly in construction and landscaping. Concrete mix yields, soil volumes, shipping freight, HVAC duct sizing, pool fill volumes, and storage unit rentals all use cubic feet as the base unit. The math never changes: three dimensions, one multiplication.
Divide cubic feet by 27 to get cubic yards. One cubic yard is a 3 ft x 3 ft x 3 ft cube. Concrete and gravel are typically ordered by the cubic yard, so knowing the conversion keeps your materials order accurate. See the cubic yard calculator to go the other direction.
A standard 80 lb bag of concrete mix yields about 0.60 cubic feet of cured concrete. Divide your total cubic feet by 0.60 to find how many bags you need. For large pours, use the concrete calculator to get bag counts and ready-mix quantities together.
Garden beds and gravel bases are usually specified by depth in inches. Convert inches to feet by dividing by 12, then multiply area by depth. A raised bed 8 ft x 4 ft x 1 ft deep takes 32 cubic feet, or about 1.2 cubic yards of soil. The gravel calculator handles the weight conversion to tons as well.
Multiply length by width by height, all in feet. A box 4 ft long, 3 ft wide and 2 ft tall = 4 x 3 x 2 = 24 cubic feet. If dimensions are in inches, divide each by 12 first, or use the inch input above.
Yes. A space 12 inches long, 12 inches wide and 12 inches tall equals exactly 1 cubic foot (1,728 cubic inches).
3 ft x 3 ft x 3 ft = 27 cubic feet, which is also exactly 1 cubic yard.
A cube 12 inches on each side. It holds about 7.48 gallons of water and weighs roughly 62.4 lb when full of water.
Divide cubic feet by 27. There are 27 cubic feet in one cubic yard (3 x 3 x 3 = 27).
Multiply length x width x height in inches, then divide by 1,728. Or switch the unit selector above to inches and the calculator does it for you.
Chris Terry is the editor of Encore Editorial and oversees content, sourcing, and the accuracy of everything published here. His background spans business operations, market research, and making complicated things readable.