Our free Concrete Calculator makes it easy to find out how many yards of concrete you need. Calculate the volume of concrete you need in cubic yards. If youre not sure what size hole to dig a rule of thumb is to use a hole diameter 3 times the post diameter and 1 3 as deep as the post height.
To get the answer in cubic yards multiply the length 10 feet by the width 10 feet by the depth.
Diameter of slab 12 feet depth of slab 4 inches 314159265358979 12 12 4 4 12 11309 0333 377 cubic feet of concrete needed for this circular slab To convert cubic feet to cubic yards multiply cubic feet 0037037037037037. 1foot 12inches 033yards 3048centimeters 03048meters. This calculator is to be used as an estimating tool ONLY. The depth is somewhat trickier so well use a standard thickness of four inches for this slab.