Cubic yard calculator

guys, I just got a new job. As part of my responsibilities I have to calculate cubic yards of material. To make my job easier, I have been trying, with limited success, to create a calculator using excel to duplicate the the options and functions of this calculator found here, >> http://www.calculatorsoup.com/calcul...calculator.php <<< Is there someone who has done this kind of thing before who might also be able to assist me with this.

Honestly, I don't know what I am doing past Length x Width x Height.

I appreciate any guidance you might give.

Thanks.

Hi,

Does the attached get you started? Enter stuff in the yellow cells