Calculates the rolled length of a roll of material when the number of turns, thickness
of the material, and the diameter of the hole in the center or the tube on which the material is wound
are given. The outside diameter of the material is also calculated. Variations due to stretching or
softness of the material are to be ignored. An example of rolled material would be a rolled carpet
or a rolled sheet of paper from the paper mill. The length units that can be used are yard, feet,
inch, meter, centimeter, millimeter and mil. A mil is equal to one thousandth of an inch.
The initial units used in the table can be changed to any of the choices given.