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Reorder Point Calculator

Calculate a reorder trigger and suggested replenishment quantity from demand, lead time, safety stock and inventory position.

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Inventory replenishment

Reorder Point Calculator

Convert recent demand, supplier lead time and safety stock into a transparent reorder trigger.

Replenishment trigger

600 units

Average lead-time demand plus the safety stock entered.

Daily demand

30.00

Units per day

Inventory position

700 units

On hand + on order − backorders

Suggested order

650 units

Status

Above trigger

Lead-time demand
420 units
Target stock for selected cover
1,350 units
Reorder point
600 units

Recent demand is treated as a planning rate, not a forecast. Account for seasonality, promotions, supplier reliability and order cut-off rules before purchasing.

About the Reorder Point Calculator

Reorder Point Calculator converts observed unit sales into average daily demand, then multiplies that rate by supplier lead time and adds the safety stock you enter.

The tool also calculates inventory position from on-hand, on-order and backordered units. A separate target-cover setting estimates a suggested replenishment quantity without hiding the formula.

Recent demand is not a forecast. Review seasonality, promotions, supplier reliability, order cut-offs and minimum order rules before creating a purchase order.

Key features

  • Daily demand from an editable history period
  • Lead-time demand
  • Safety-stock reorder trigger
  • Inventory-position calculation
  • Reorder-zone status
  • Target-cover order quantity
  • Local TXT export

How to use

  1. 1Enter units sold and the number of days represented.
  2. 2Enter supplier lead time and your safety-stock buffer.
  3. 3Add on-hand, on-order and backordered units.
  4. 4Choose the target days of stock for replenishment.
  5. 5Review the trigger and suggested quantity, then apply supplier constraints.

Examples

Routine SKU replenishment
Input: 900 units sold over 30 days, 14-day lead time, 180 safety units and current inventory
Output: Reorder point, inventory position and target-cover order quantity

Frequently asked questions

What is the reorder point formula?
Average daily demand multiplied by lead-time days, plus entered safety stock.
What is inventory position?
On-hand units plus on-order units minus backordered units.
Does this forecast future demand?
No. It extends the entered historical rate as a planning assumption.
Are minimum order quantities included?
Use the Purchase Order Planner when MOQ and case-pack rounding are required.

Continue your workflow

Open a related tool to prepare your files or refine the finished result.