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Reorder Point Calculator

Three sliders - lead time, average daily sales, safety stock - and your reorder point in seconds, with the annual savings from stock-outs avoided.

Most retail teams stock out not because they do not know the answer, but because the answer is in someone's head and not in the workbook. Three sliders - lead time, average daily sales, safety stock - and your reorder point, with the Excel formula to paste into your own sheet. Nothing leaves your browser.

Your inputs

7 days
1 day30 days
36 units
1 unit200 units
84 units
0 units200 units

Reorder point = lead time × average daily sales + safety stock. Adjust safety upward for products with demand variability, longer lead times, or supplier unreliability.

Your reorder point

0units

Paste into Excel

=ROUNDUP(7*36+84,0)

Replace the numbers with cell references (lead time, daily sales, safety stock) and fill down for every SKU.

Demand during lead time: 252 units

Safety stock: 84 units

Days of cover at reorder: 9.3 days

Act on these numbersOr get the free audit

Runs entirely in your browser - nothing is sent anywhere until you choose to WhatsApp us with the result.

Why we built this

Stock-outs are a pricing problem dressed up as an inventory problem.

The cost of a stock-out is usually invisible - lost margin, expedited shipping, churned customers - until you put a rupee number on it. Then reorder points become a leadership conversation, not just an ops one. This calculator surfaces the rupee number, so the reorder point becomes the easy part.

A real inventory engagement layers in dynamic demand variability, supplier reliability and ABC classification on top of this single-SKU formula - but the formula is the foundation.

Want this automated across every SKU?

Send us the inventory workbook. We will tell you the one fix first.

Free audit - the seven mechanical checks, plus a confirmation of where the inventory pipeline is leaking, in writing, within one working day.

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Time to result
<2m
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  1. 1Run the tool
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