How to use this tool
Enter the available stock units and average daily demand and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.
Formula
Days of cover = available stock ÷ average daily demand.
Example
500 units at 25 units per day provide 20 days of cover.
Prepare your inputs
Use usable stock and positive average daily demand. Exclude damaged or unavailable inventory if it cannot meet demand.
Understand the result
Days of cover assumes no replenishment and stable demand. A stockout date can differ because of seasonality and incoming orders.
About this version
This page uses a shared calculation method. Industry and country labels provide a browsing context; they do not change the formula or imply specialist or local regulatory validation. Currency labels do not perform currency conversion.
Limitations and assumptions
General-purpose estimate only. It does not apply country-specific tax rates, statutory payroll rules, accounting standards, or legal requirements. Verify local assumptions before business use.