Cylinder Volume Calculator in Cubic Yards
Calculate cylinder volume in cubic yards using V = pi r squared h divided by 27 for foot dimensions. For a concrete column with radius 2 ft and height 10 ft, multiplying pi times 4 times 10 and dividing by 27 gives 4.654 cu yd. Enter your column dimensions below for concrete estimates.
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Calculated dimensions update this diagram
Concrete footing and pillar yardage estimation
This tool converts round dimensions into cubic yards. It estimates concrete for round piers, sonotubes, and holes.
For civil engineering concrete estimating on circular pillars and caissons, read our concrete column volume estimation guide. For drilling and excavation projects, see our analysis on how much dirt comes out of a borehole.
Dividing cubic feet by 27 for batch ordering
For dimensions in feet, cubic yards equals V = (pi r squared h) divided by 27. There are 27 cubic feet in one cubic yard.
Frequently Asked Questions
How do you calculate cylinder volume into cubic yards?
Calculate the total volume of your cylinder in standard cubic feet using V = π × r² × h. Once you have your cubic foot total, simply divide the entire number by exactly 27 to get your final cubic yards.
How many bags of concrete make up one cubic yard?
If you are mixing by hand instead of ordering a truck, it takes approximately 45 standard 80-pound bags of concrete mix to successfully fill a single cubic yard of space.
How many cubic feet fit inside one cubic yard?
There are precisely 27 cubic feet inside a single cubic yard. Think of a Rubik's cube where every tiny square is one foot wide.
Is a cubic yard of dirt heavier than concrete?
No. A cubic yard of standard topsoil weighs roughly 2,000 pounds, whereas a solid cubic yard of poured concrete weighs approximately 4,000 pounds.
Should I order extra material beyond my calculation?
Yes. The construction industry standard is to order 5% to 10% more cubic yards than your mathematical volume calculation dictates to account for ground settling, spills, and uneven subgrades.