Logistics & production
Stock cover and incoming supply Calculator
Check how long unreserved stock lasts and whether replenishment arrives in time. This free stock cover and incoming supply calculator shows the calculation and its assumptions so you can compare your own figures.
Your results
Check how long unreserved stock lasts and whether replenishment arrives in time.
Calculated outcomes
- Available Units
- 900
- Cover Including Incoming Days
- 28
Assumptions and estimates
- Incoming stock is included only in the cumulative cover figure; the arrival warning accounts for timing. Assumes uninterrupted constant daily demand and one replenishment.
- Method: Available stock = on hand − reserved. Cover days = available stock ÷ demand; projected gap compares demand to delivery time.
- Incoming stock contributes to total cover, but cannot prevent an earlier stockout if it arrives too late.
Useful next steps
- Use Compare options to test an alternative side by side.
- Copy, print or download a record of this calculation when you need one.
Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.
How the stock cover and incoming supply calculation works
Available stock = on hand − reserved. Cover days = available stock ÷ demand; projected gap compares demand to delivery time.
Incoming stock contributes to total cover, but cannot prevent an earlier stockout if it arrives too late.
Using this calculator
- Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
- Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
- Review days of cover and expected gap units and incoming arrives before stockout, then read the stated assumptions and eligibility conditions before using the result.
Worked example
This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.
See example inputs
- Stock units on hand
- 1000
- Reserved stock units
- 100
- Average daily demand
- 50
- Units arriving in next delivery
- 500
- Days until incoming delivery
- 15
- Days Of Cover
- 18
- Expected Gap Units
- 0
- Incoming Arrives Before Stockout
- Yes