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Inventory Reorder Point Calculator

Estimate reorder stock from daily demand and lead time.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Reorder point = average daily demand × lead time + chosen safety stock, rounded up. Demand and lead time variability are not inferred; enter a buffer that fits your operation.

How to use it (step by step)

  1. 1Fill in the boxes: “Average units sold per day”, “Supplier lead time (days)”, “Safety stock (units)”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

Average (mean) / median
Average = add everything and divide by how many. Median = the middle value when sorted; it is not pulled by extreme values.

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