🛒 Procurement & Purchasing

Reorder Point Calculator

Calculate the stock level that should trigger a new purchase order.

Enter your figures

Results

Reorder point
— units
Lead-time demand
—
Safety stock
—
Current status
—
The basic reorder point covers expected demand during supplier lead time plus a safety buffer. For variable demand and lead time, use a statistical safety-stock model.
Formula: Reorder point = average daily demand × lead time + safety stock.

How to use this calculator

What to enter

Enter or select the following as requested: Average daily demand; Supplier lead time (days); Safety stock (units); Current stock (optional). Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The logistics or inventory result estimates stock levels, capacity, timing, service performance, or cost from the quantities, demand, lead time, dimensions, and rates entered. Check units, order frequency, supplier lead-time variability, packing rules, and whether freight surcharges or carrying costs are included.

When to use it

Use this for preliminary replenishment, warehouse, fulfillment, or shipment planning. Compare the estimate with actual demand and supplier/carrier terms before committing inventory or delivery promises.