Diameter and length/height in — cubic feet, yards and gallons of any cylinder: tanks, tubes, round planters and footings.
A cylinder's volume is its circular end area times its length: <strong>π × (diameter ÷ 2)² × height</strong>. The calculator accepts the diameter in inches or feet, computes cubic feet, and shows yards and gallons — the three units tanks, tubes and round footings get measured in.
Yes — every calculator on this site is free, runs entirely in your browser, and requires no signup.
The formulas are the standard ones used in the trade, accurate to fractions of an inch or pound; add a small waste margin to every order.
Slabs and pads: cubic yards and bag counts in seconds.
Open →Cubic yards and tonnage for driveways, paths and bases.
Open →Cubic yards and 2-cu-ft bag counts for any bed size.
Open →Cubic yards and tons for bedding, play sand and fill.
Open →Cubic yards and tons for lawns, beds and leveling.
Open →Total bag count for any fence run, split per hole.
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