To use the Concrete Volume Calculator, simply enter the width,
length, and thickness of your pour, click on whether you are
measuring the thickness in feet or inches, then click on the
Calculate button. The calculator will estimate the number of
cubic yards of concrete that will be required. 
To use the Block Wall Calculator, simply enter the height and
length of the wall, click on whether you are filling an 8inch
or 12inch wall, then click on the Calculate button. The
calculator will estimate the number of cubic yards that will be
required. Note that this is an estimate. There is significant
variation in fill space among different blocks. This calculator
assumes the use of double openended bond beam blocks. 
To use the Concrete Column Calculator, simply enter the height
and diameter of the column, and click on the Calculate button.
The calculator will display the number of cubic yards required. 
