THE NUMBERS, EXPLAINED
How to use this calculator.
Ignores incoming orders and demand variability. Use consistent sellable units.
Start with your inputs
Enter units on hand, expected daily sales. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Units on hand | 300 |
| Expected daily sales | 20 |
A worked example
With the example inputs above, days of cover is 15. Change the inputs to explore your own scenario.
Putting the example numbers into the formula
Days of cover
(300) ÷ (20) = 15
| Result | Example answer |
|---|---|
| Days of cover | 15 |
How this is calculated
Days of cover
a ÷ b
Symbols and units
- a
- Units on hand
- b
- Expected daily sales
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Ignores incoming orders and demand variability. Use consistent sellable units.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Days of cover. The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Ignores incoming orders and demand variability. Use consistent sellable units.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →