Inventory replenishment tool
Reorder Point Calculator
Calculate a simple reorder threshold from average daily sales, replenishment lead time and the safety stock you choose.
- 100% Free
- No Sign Up
- Instant Calculation
Your inputs
Planning threshold: Reorder Point tells you when to replenish based on average demand, lead time and safety stock; it is not a full inventory forecast.
Your results
Reorder Point Breakdown
Enter the average daily demand and replenishment lead time that fit your own inventory process. Results are a reorder threshold, not demand forecasting advice.
How to use
- 1
Enter average demand
Add the average units sold per day.
- 2
Add lead time and safety stock
Use the replenishment time and buffer that suit your operation.
- 3
Set a reorder threshold
See lead-time demand and the resulting reorder point.
What this tool does
Reorder Point Calculator uses a transparent inventory threshold: demand during lead time plus safety stock. It is a simple planning tool, not a complete inventory forecasting or purchase-order system.
- ✓Lead-time DemandAverage daily sales multiplied by replenishment lead time.
- ✓Safety Stock ContributionThe extra stock buffer you choose.
- ✓Reorder PointThe combined unit threshold for starting replenishment.
Formula & assumptions
Reorder Point = Average Daily Sales × Lead Time in Days + Safety Stock.
- Average daily sales, lead time and safety stock are manual planning inputs.
- This is a simple reorder threshold, not a complete demand forecast, purchase-order or inventory-management system.
Frequently asked questions
What is a reorder point?
It is the inventory level at which you start replenishment so demand can be covered during lead time.
How is reorder point calculated?
Average daily sales multiplied by lead time in days, plus safety stock.
Can I use decimal demand?
Yes. Average daily sales and the result can include decimals for planning purposes.
Is this a demand forecast?
No. It is a simple threshold based on the inputs you provide.