To calculate the material length for a known spool diameter

Enter the width and thickness of your web, the width of your spool, outside diameter of the spool, and the outer diameter of the core. The calculator will then display the volume (in cubic inches) of material, the core volume, and the length of material.

Spool Dimension Diagram

Input Values
Strand Width
Web Thickness
Package Width
Package Diameter
Core Outside Diameter
Air Space Fraction 0.0-1.0 where (0.0 = No Trapped Air)

Calculated Results
Material Volume
Core Volume
Material Length