FREE SELLER CALCULATOR

Inventory Reorder Point Calculator

Estimate when to reorder inventory based on daily demand, supplier lead time, and safety stock.

Product profit calculator

See what remains after product costs, shipping, and selling fees.

ESTIMATED PROFIT PER UNIT

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Estimates exclude taxes, returns, and fixed overhead unless explicitly entered.

🔒 Your inputs stay in your browser. These tools do not send your financial data to a server.

Know when to reorder stock

Reorder point = average daily unit demand × supplier lead time in days + safety stock. Inventory position = on-hand stock + confirmed incoming units − backorders.

Worked example

With average demand of 3 units per day, a 14-day supplier lead time, and 15 units of safety stock, the reorder point is 57 units.

What to keep in mind

These calculations are estimates for decision support, not accounting or financial advice. Use actual fees and costs, and account for taxes, returns, discounts, and other expenses separately when applicable.

Need to compare multiple products? The Aldervant Seller Profit & Pricing Toolkit is a downloadable Excel workbook available for $29.

OTHER FREE CALCULATORS

Product profit calculator →Target selling price calculator →Break-even calculator →Inventory cash calculator →

GOOD TO KNOW

Calculator questions

Is this calculator free?

Yes. No account is required.

Are my inputs uploaded?

No. The calculations run in your browser. Website analytics does not collect the numbers entered into the calculator.

Are these results financial advice?

No. Results are estimates for decision support. Check actual fees, taxes, returns, and other costs.