Find the volume of a cylinder in cubic yards for piers, columns, circular pads, post holes, and round forms.
Calculate cubic yards of a cylinder using diameter and depth for concrete piers, round columns, post holes, tanks, and circular forms.
To calculate cubic yards of a cylinder, divide the diameter by two to get the radius, square the radius, multiply by pi and height, then divide cubic feet by 27.
Use consistent units before calculating. When depth is entered in inches, the calculator converts it to feet before dividing by 27.
Practical notes for measuring, converting, and ordering with fewer surprises.
This cylinder volume calculator cubic yards page is built for circular shapes where length and width do not apply. Enter diameter and height or depth, and the tool converts the circular volume to cubic yards.
For concrete cylinder calculator yards estimates, use the planned concrete diameter, not the nominal post size. If the hole is wider at the top or bottom, calculate the larger section separately.
A circle cubic yard calculator is useful for foundations, deck piers, fence posts, light poles, bollards, columns, and other round pours where rectangular formulas would overestimate.
This page focuses on the main calculator topic while covering closely related project phrases people use when estimating material quantities.
Short answers for the questions that usually come up before ordering material.
Use pi times radius squared times height to get cubic feet, then divide by 27 to convert to cubic yards.
It needs diameter and height or depth. The calculator converts diameter to radius automatically.
Yes. Enter the pier or hole diameter and depth, then include extra for overdig and waste.
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