The volume formula for a rectangular (or square) box in cubic feet is height(ft) x width(ft) x length(ft), as seen in the figure below: For example, to fill a box with a width of 3ft and a length of 6ft, to a depth of 1ft, you need to multiply 1ft x 3ft x 6ft = 24ft 3 (cubic feet) of gravel, then multiply that by the density. Calculate project cost based on price per square foot, square yard or square meter. Enter measurements in US or metric units. Let's convert some cubic units to cubic feet. Since volume is equal to area times height, simply multiply square feet times the height in feet to find the cubic footage. The cubic foot (symbols ft³, cu. Calculate square footage, square meters, square yardage and acres for home or construction project. You can also use a calculator like our square footage to cubic footage calculator to simplify the conversion. Conversion between cubic inch and square feet. To calculate cubic yards from a square feet figure, we need to include an extra dimension - height/depth. Northern New Mexico, above 7,000 feet.Similar seasonal climate as Great Barrington, MA, except dryer and more sunshine. The calculator will indicate the number of 60 lb bags you will need to build a 4 inch or 6 inch slab. Example: Calculate the cubic feet of a 4 meter high, 8 square foot area. Re: Cubic feet to Square feet by Robert Fogt on 08/12/05 at 18:58:15 I looked up broken granite and it has a density of 103 pounds per cubic foot. Actually you can make this conversion if you have that third unit of measure - depth. Multiply Square Feet by the Depth* = Cubic Feet; Divide Cubic Feet by 27 = Cubic Yards; Multiply Cubic Yards by 1.5 = Tons Needed; For figuring round areas, use the following example: 24 ft round pool – 4″ deep. ft.) is a nonmetric unit of volume, used in U.S. customary units and Imperial units. The smaller the volume, the fewer BTUs are required to cool or heat. How to Calculate Cubic Feet with Square Feet? It is defined as the volume of a cube with edges one foot in length. ›› Definition: Square foot. Cubic inch to Square feet Calculator A square foot is by definition the area enclosed by a square with sides each 1 foot … a "mongo box" after his insights on concrete mix for counters. square feet is a measure of area 1 inch = 2.54 cm 1 foot = 30.48 cm 1 foot = .3048 m Comment A 2×6 box 17-3/3 inch square (inside) struck level is a cubic foot. Re: Cubic feet into square feet cubic meter is a volume not an area. Square footage is a measure of area. Start with 1/2 the radius: 12 x 12 = 144 144 x (3.14) x depth divided by 27 x unit weight. Calculate square feet, meters, yards and acres for flooring, carpet, or tiling projects. Six. ›› Definition: Cubic foot. Due to the fact that the square foot is a unit of area, with two dimensions, and the cubic yard is a unit of volume, with three dimensions, this isn't a conversion - it's a calculation. For instance, if you’re installing a flooring system that’s 1” thick, you can figure out the product’s coverage area given a particular volume. As we know, the volume can be calculated using area and height by multiplying the both, to find cubic footage, simply multiply your square feet by the height in feet. How to find Cubic Feet using Square Feet. How to calculate square footage for rectangular, round and bordered areas. For that you would need: 640 cubic foot * 103 pounds/cubic foot = 65920 pounds 65920 pounds / 2000 = 32.96 tons But its a fairly risky guess for the amount, since between 5" and 18" is a big difference. Enter the size of the slab you want to build in square feet. Example: However, volume is a more accurate measurement than area for determining BTU usage because ceiling height is factored into the equation; each three-dimensional cubic square foot of space will require a certain amount of BTU usage to cool/heat accordingly. 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