Free calculator
Reorder Point Calculator
Enter how many units you sell a day, how long your supplier takes, and the buffer you keep. The calculator shows the stock level at which to place your next order.
Reorder when stock reaches
76 units
56 units sold during the lead time, plus 20 units of safety stock.
Runs in your browser. Nothing you enter is stored or sent.
The formula
Reorder point = (average daily sales × lead time in days) + safety stock. The first part is what you will sell while you wait for the delivery. The second part is your buffer.
Keeping it current
Daily sales and lead times change with trends and seasons, so a reorder point set a few months ago can be wrong today. Recalculate it regularly for each product.
Full walkthrough: How to calculate a reorder point.