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Concrete Column Volume Calculator

Work out concrete column volume instantly with clear inputs, formula shown and shareable results.

About Concrete Column Volume Calculator

A rectangular column is a simple prism, so volume is width times depth times height, multiplied by the number of identical columns. Formwork area is the perimeter of the section times the height, which is the figure shuttering is priced and hired against.

Formulas

Column volume

V = width x depth x height x number of columns

Formwork

Area = 2 x (width + depth) x height x count

Worked example

With the default values below, Concrete Column Volume Calculator returns Total concrete volume of 2.160. Change any input above and every figure here is recalculated in your browser.

Inputs used

Column widthminimum 0.05 m
0.3 m
Column depthminimum 0.05 m
0.3 m
Column heightminimum 0.1 m
3 m
Number of columnsminimum 1
8

Results

Total concrete volume
2.160 m³
Volume per column
0.2700 m³
Formwork area
28.80 m²
Volume in cubic feet
76.3 ft³

Step by step

  1. 1Values used
  2. 2Column volume
  3. 3Formwork
  4. 4Total concrete volume= 2.160 m³
  5. 5Volume per column= 0.2700 m³
  6. 6Formwork area= 28.80 m²
  7. 7Volume in cubic feet= 76.3 ft³

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Concrete Column Volume figure worked out?

V = width x depth x height x number of columns. A rectangular column is a simple prism, so volume is width times depth times height, multiplied by the number of identical columns.

Should I deduct the reinforcement volume?

No. Steel occupies about 1-2 percent of the section, which is well inside the waste allowance, and no supplier prices concrete that finely.

What values do I need to enter?

This calculator takes 4 inputs: Column width, Column depth, Column height, Number of columns. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.

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