Choose your shape
square rect circle ellipse
units  dimensional:  weight:  density:  ozs/in 3
square
  Height Volume Weight
  in in3 ozs
^ 1.12528.1242.12
  1.00025.0037.44
  0.87521.8832.76
  0.75018.7528.08
Z 15.6223.40
  0.50012.5018.72
  0.3759.3814.04
  0.2506.259.36
^ 0.1253.124.68
Z step:  
  Area
      in 2
^  X   ^
3.00 4.00 6.00 7.00
  7.00                         49.00
  6.00                   36.00     
Y 5.00             25.00           
  4.00       16.00                 
  3.00 9.00                       
step:  
Shape
perimeter
minimum fiber needed for:
1st layer 2nd layer 3rd layer
20.0 20.5 21.0 21.5