ConcreteQty

Column and pier quantity

Concrete Column Calculator

Calculate round or square concrete columns by size, height, and count.

Project

HEIGHT

Formula

How the result is calculated

Round column volume = π × radius² × height. Square column volume = width × depth × height.

Worked example

Check the order logic

Switch between round and square without choosing a separate calculator. Add a section for a second size.

Assumptions

Waste and supplier rounding stay editable

The launch defaults are 10% waste and upward rounding to 0.25 yd³ or 0.10 m³. Open “Adjust assumptions and costs” to use your supplier’s increment, actual prices, density, truck capacity, or product bag yield.

Questions

What this calculator does

Can round and square columns share one job?

Yes. Add a section and change its shape.

Are dimensions inside or outside the forms?

Enter the final concrete dimensions inside the forms.

Does the calculator choose column size?

No. It only calculates the volume of the dimensions entered.

Bag yields follow the cited manufacturer data. See sources and review dates.