Reorder Point ROP Calculator – Supply Chain Instructions: Use this calculator to find the Reorder Point (ROP) by entering values of Demand per day (D), and Lead time for a new order in days (L). Please input the desire values in the form below: You Might Also Like Fill Rate Calculator – Supply Chain July 31, 2021 Perfect Order Measurement Calculator – Supply Chain July 31, 2021 Days of Supply Calculator – Supply Chain July 31, 2021