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Roll Length app for iPhone and iPad


4.8 ( 8928 ratings )
Utilities Reference
Developer: Scott Caines
1.99 USD
Current version: 2.0, last update: 7 years ago
First release : 21 Aug 2013
App size: 1.71 Mb

Roll length is a calculator that enables the user to enter values in any three of the four following fields: Roll OD, Core OD, Thickness, Length and calculate the remaining fourth unknown value. The following units of measure can be selected: inches, feet, millimeters, centimeters, meters, microns, gauge, mils.

This powerful calculator goes a step further and allows the user to enter actual measured values in all four fields and create a correction factor that can be designated as Product A, B, C or D. This correction factor can be assigned to a new calculation and is useful for thin films where the surface roughness is sufficient to create an air gap between the wound in layers in a roll. The correction factor can be ignored in most situations and the user selects Universal for a factor of 1.0 for no correction.