How this calculation works
Extra stock for a longer-than-typical supplier delay.
Worked starting inputs
Example inputs: Average Daily Units = 15.0, Long Lead Days = 18.0, Typical Lead Days = 12.0. Expected result: Extra buffer units: 90. 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.