Abstract: The present disclosure is for a system and a method for processing requests for custom paper products and estimating costs associated with manufacturing the custom paper products. Specifically, the present invention is an inventory management, yield and cost estimation system and method for use by a paper converting company. The system and method involves determining the output requirements of a custom paper product, determining the available inventory which can be converted into the custom paper products, the available machines and an appropriate converting process to perform the converting and estimating the yield, production time and production cost associated with a given set up for making the custom paper products.