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E-commerce Tools

Free Inventory Reorder Point & Safety Stock Calculator

Calculate when to reorder, how much safety stock to keep and the economic order quantity (EOQ), so you never run out of best sellers or tie up cash in slow stock.

Quick answer

Inventory Reorder Point & Safety Stock Calculator: Calculate when to reorder, how much safety stock to keep and the economic order quantity (EOQ), so you never run out of best sellers or tie up cash in slow stock. It is free, needs no sign-up and runs in your browser. How to use it: 1) enter average and highest daily sales; 2) add average and longest supplier lead times and order and holding costs; 3) reorder when stock hits the reorder point, in the suggested quantity.

Free No sign-up Runs in your browser
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The formulas

Safety stock = (max daily sales x max lead time) – (average daily sales x average lead time). Reorder point = average daily sales x lead time + safety stock. EOQ = square root of (2 x yearly demand x order cost / holding cost).

About this tool

The Inventory Reorder Point & Safety Stock Calculator is built and maintained by the Hayyat Networks team, a digital marketing, SEO and web development agency working with businesses in New York and Lahore since 2016. It is part of our free E-commerce Tools collection.

  • Last reviewed
  • CostFree, no sign-up
  • Where it runsRuns in your browser
  • Checking resultsResults follow the steps shown on this page.
  • PrivacyIt runs entirely in your browser: what you type stays on your device and is never sent to us.

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Link to this tool

Free to share in your blog, course notes or resource list. Copy the link below:

<a href="https://hayyatnetworks.com/free-tools/ecommerce-tools/inventory-reorder-calculator/">Inventory Reorder Point & Safety Stock Calculator</a> by Hayyat Networks
FAQ

Inventory Reorder Point Calculator FAQs

What is a reorder point?

The stock level that triggers a new purchase order.

How much safety stock should I keep?

Enough to cover the gap between your worst and average sales and lead times.

Does this work for Amazon FBA?

Yes, add inbound processing time to lead time.

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