(Average Daily Sales x Lead Time Days) + Safety StockInventory calculator
Inventory Reorder Point Calculator
Know when to reorder before stock runs out.
Your figures stay on this device
Under the hood
Understand the number
Use the formula and notes below to check whether the result fits your real operating conditions.
- Lead Time Days
- Days between ordering and receiving stock.
Enter a realistic current order or SKU, then compare the result with your target.
Change one variable at a time to see which operational lever matters most.
This tool is for planning and education. It is not financial, tax, legal or carrier rating advice. Rounding uses two decimal places unless the result is naturally a unit count.
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FAQ
Are my inputs stored?
No. Calculator inputs run in your browser and are not submitted.
When was this checked?
Last reviewed on August 25, 2026. Changing third-party fees should be verified from official sources.
Sources
For carrier dimensional weight and marketplace fees, verify current official documentation before operational use.