Concrete Footings - Volume

Estimate required concrete footing volume using the formula v = 0.0031 × l × w × t, where v is concrete volume in cubic yards, l is length in feet, w is width in feet, and t is depth in inches.

Calculator

Inputs

Length of Footing (ft)

Width of Footing (ft)

Depth of Footing (in)

Results

Required Concrete Volume-- cy

Depth of Footing (in)	12 in width (cy/ft)	15 in width (cy/ft)	18 in width (cy/ft)	24 in width (cy/ft)
6	0.019	0.023	0.028	0.037
8	0.025	0.031	0.037	0.049
9	0.028	0.035	0.042	0.056
10	0.031	0.039	0.046	0.062
12	0.037	0.046	0.056	0.074
18	0.056	0.069	0.083	0.111
24	0.074	0.093	0.111	0.148
30	0.093	0.116	0.139	0.185
36	0.111	0.139	0.167	0.222
42	0.13	0.162	0.194	0.259

Reference Information

1 cubic yard (cy) = 27 cubic feet
1 foot (ft) = 12 inches (in)
1 cy per linear foot (y³/ft) = 2.5 m³/m

Formula

v = 0.0031 × l × w × t

Where:

v = required concrete (cubic yards)
l = length of footing (feet)
w = width of footing (feet)
t = depth of footing (inches)

Concrete Footings - Volume | MEPKit Engineering Tools | MEPKit