The Glenroy Packaging Calculator allows users to quickly calculate commonly used flexible packaging specifications such as roll weight, roll footage, roll diameter, basis weight and yield. Also available are several conversion tools including MSI (thousand square inches) to Linear Feet, MI (thousand impressions) to linear feet, MI to MSI, pounds to linear feet, meters to linear feet, and linear feet to impressions. A "share" feature allows users to copy or email calculations and conversions directly from their iOS devices.