What this calculator solves
Use Packaging Supply Reorder Point to decide when usable stock should trigger replenishment. It combines average daily use during supplier lead time with safety stock and compares the trigger with current stock. It does not calculate an economic order quantity.
How to choose the inputs
Measure daily use in the same unit as inventory, use an observed replenishment lead time from order release to usable receipt, and set safety stock for documented demand and lead-time variability. Current stock should exclude damaged, reserved, or obsolete material.
| Input | How to prepare it |
|---|---|
| Average daily use | Packaging Supply Reorder Point Calculator: Count average daily use in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
| Supplier lead time | Packaging Supply Reorder Point Calculator: Count supplier lead time in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
| Safety stock | Packaging Supply Reorder Point Calculator: Count safety stock in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
| Current stock | Packaging Supply Reorder Point Calculator: Count current stock in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
How the calculation works
- Validate the Packaging Supply Reorder Point Calculator manifest: confirm that average daily use, supplier lead time, safety stock describe the same Packaging Supply Reorder Point Calculator pack, batch, or planning period.
- Calculate reorder point: apply Reorder point = average daily use × lead days + safety stock without rounding intermediate values for Packaging Supply Reorder Point Calculator.
- Review the reorder point breakdown: use the primary result for the stated decision and the secondary values to identify the input or constraint driving this Packaging Supply Reorder Point Calculator result.
Worked example
Using 80 units daily, 10 lead days, and 300 safety units produces a 1,100-unit reorder point.
Next action: After: determine order quantity from supplier packs, forecast demand, open orders, and storage.
How to interpret the result
When on-hand stock is at or below the point, review open purchase orders before releasing another. If it is above the point, the displayed margin is not excess inventory by itself. Recalculate after order mix, supplier performance, pack method, or seasonality changes.
Common mistakes
- Using calendar lead days when operations consume only working days without adjusting use.
- Counting quarantined or allocated stock as available.
- Setting safety stock as an unexplained percentage.
- Treating reorder point as the quantity to order.
Assumptions and limitations
The simple model uses average demand and a fixed safety-stock amount. It excludes demand distributions, service-level optimization, minimum order quantities, order review cycles, open orders, storage limits, and supplier capacity.
Related workflow
- Before: clean inventory records and measure use and lead time.
- After: determine order quantity from supplier packs, forecast demand, open orders, and storage.