Free · Browser-only estimate

Purchase Order Quantity Planner

Plan inventory to cover target days after considering available and inbound stock.

Calculate using your numbers

Processing stays on this device. Amounts use one consistent currency. Default values are illustrative; replace them with your own.

Enter your numbers then calculate.

How this calculation works

Plan inventory to cover target days after considering available and inbound stock.

Worked starting inputs

Example inputs: Target Days = 30.0, Daily Sales = 8.0, Current Stock = 90.0, Incoming Stock = 20.0. Expected result: Suggested purchase units: 130. These are illustrative numbers, not market rates. Change a value to compare scenarios; download the result if useful.

Assumptions and limitations

Manual estimates depend on your data and assumptions.

Every result depends on the entered values. The tool does not fetch marketplace fees, infer current exchange rates or verify supplier policies. It is informational, not tax or financial advice.

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