handymath.com
Complete Roll Calculator for the iPhone
Enter any three values.
Length of Material
ft
in
m
cm
mm
yd
Thickness of Material
ft
in
mil
m
cm
mm
micron
Center Hole Diameter
ft
in
m
cm
mm
Outside Diameter
ft
in
m
cm
mm
Decimals
0
1
2
3
4
5
F
