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Inventory Reorder Point (ROP) Calculator

Determine the exact stock level at which you must place a purchase order with your factory.

Formula: Reorder Point (ROP) = (Daily Sales * Lead Time Days) + Safety Stock

Calculator Inputs

Live Sync
Festive Season Buffer:

Double your safety stock 45 days before Diwali, Great Indian Festival, and Big Billion Days to prevent running out of stock during peak demand.

Reorder Point (ROP)Verified Formula
0 units

place order when stock reaches this level

Calculation Breakdown

Sales Demand During Lead Time--
Safety Buffer Stock--
Critical Reorder Trigger Point--
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Frequently Asked Questions

Common questions on calculations, industry standards, and seller profit optimization.

What is lead time in inventory management?

Lead time is the total number of days between placing a purchase order with a supplier and having the goods ready on your warehouse shelves.

What is safety stock and why is it critical?

Safety stock is buffer inventory held to prevent stockouts caused by sudden sales spikes (e.g. festive sales) or unexpected supplier manufacturing delays.

What formula calculates Reorder Point (ROP)?

Reorder Point = (Average Daily Sales Rate × Lead Time in Days) + Safety Stock.