01 / HOW TO USE IT
From inputs to a usable kitchen figure
- 01
Enter average daily use, supplier lead time, review period, and safety stock.
- 02
Add current on-hand and on-order quantities.
- 03
Calculate and round the suggested order to suit supplier packs.
02 / WHEN IT HELPS
Useful for everyday production planning
- Reviewing dry-stock reorder levels
- Setting an initial par for regularly used items
- Checking whether open orders cover expected demand
03 / THE WORKING MODEL
Assumptions and limitations
Assumptions
- Average daily usage is representative of the planning period.
- Lead time and review period are entered in calendar days.
- On-order stock will arrive as expected and is included in inventory position.
Check before using
- Demand spikes, spoilage, delivery unreliability, minimum orders, and pack sizes are not predicted.
- The calculator does not connect to inventory or supplier systems.
- Perishable stock also requires shelf-life and food-safety review.
04 / QUICK ANSWERS
Frequently asked questions
What is the reorder point?
Average daily use multiplied by lead-time days, plus safety stock.
What is the suggested par level?
It covers lead time plus the review period, then adds safety stock.
Why can the suggested order be zero?
If on-hand plus on-order stock already reaches the suggested par, no additional quantity is indicated.