These calculators are fairly striped down. In the Multirorials the calculators retrieve complete lists e.g.
For Concrete you don't get just cubic yards, you would get:

Bags of Pre-mix

Full Bags of Portland / PSI Mix

Half Bags of Portland / PSI Mix

Yards of Aggregate

Yards of Fill

Pounds of Fill

Rebar

Mesh

And of Course once you know the volumes and quantities we teach you

How to do concrete,

How to do ponds,

How to do stone patios and walkways,

How to do straw bale,

How to do block walls,

How to do glass block windows, walls & showers DVD,

How to do brick block and adobe repairs.