Business calculator
Reorder Point Calculator
Estimate when to reorder inventory from daily demand, lead time, and safety stock.
Formula
Reorder point
Reorder point = demand per day x lead time + safety stock
120 units/day for 7 days plus 300 safety stock gives 1,140 units.
FAQs
What is lead-time demand?+
It is expected demand while waiting for replenishment.
Why add safety stock?+
Safety stock buffers demand spikes and supplier delays.
How does the Reorder Point Calculator calculate the result?+
It uses the Reorder point: Reorder point = demand per day x lead time + safety stock. 120 units/day for 7 days plus 300 safety stock gives 1,140 units.
What information do I need to use the Reorder Point Calculator?+
Estimate when to reorder inventory from daily demand, lead time, and safety stock.
How accurate is the Reorder Point Calculator?+
Reorder Point Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Reorder Point Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Business guide
How to use the Reorder Point Calculator
Estimate when to reorder inventory from daily demand, lead time, and safety stock. The page also explains the reorder point and shows a practical example: 120 units/day for 7 days plus 300 safety stock gives 1,140 units.
- 1
Enter your details
Enter daily demand, lead time, and safety stock, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the reorder point: Reorder point = demand per day x lead time + safety stock.
- 3
Compare scenarios
Change one or more inputs to see how they affect the reorder Point Calculator result before you use the estimate.
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