Concrete Columns

Estimate concrete volume required for concrete columns. Calculate the volume of concrete needed for round or square columns in cubic yards using column dimensions and height.

Concrete Columns Calculator

Estimate the concrete volume required for concrete columns using the formula:

v = 0.7854 × a² × h / 27

Where:

v = required concrete (cubic yards)
a = column area (sq. ft.)
h = column height (ft)

Note: 1 cubic yard = 27 cubic feet; 1 ft = 12 inches

Calculator

Inputs

Column Type

Column Diameter (inches) - Round (in)

Column Size (inches) - Square (in)

Column Height (ft)

Results

Column Area-- sq. ft.

Concrete Volume Required-- cy

Column Size (in)	Volume (cy per linear foot)
8 (Round)	0.013
9 (Round)	0.016
10 (Round)	0.020
11 (Round)	0.024
12 (Round)	0.029
14 (Round)	0.040
16 (Round)	0.051
18 (Round)	0.065
20 (Round)	0.081
22 (Round)	0.097
24 (Round)	0.116
26 (Round)	0.137
28 (Round)	0.158
30 (Round)	0.181
12 x 12 (Square)	0.037
14 x 14 (Square)	0.050
16 x 16 (Square)	0.066
18 x 18 (Square)	0.083
20 x 20 (Square)	0.103
24 x 24 (Square)	0.148
30 x 30 (Square)	0.231