Reorder Point Calculator
The stock level that should trigger a new order.
Use the safety stock calculator if you are not sure.
Reorder point
228
168 lead time demand + 60 buffer
How the Reorder Point Calculator works
The reorder point is not a guess about when stock looks low. It is the quantity that will carry you through the supplier's lead time plus a buffer for the weeks demand runs hot. Order at that level and stock arrives as the buffer is being used, not after it has run out.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
What is the reorder point formula?
(Average daily demand × lead time in days) + safety stock. Selling 12 units a day with a 14-day lead time and 60 units of safety stock gives a reorder point of 228 — place the order when stock hits that number.
What if my lead time varies?
Use the average lead time in the formula and account for the variability in safety stock, which is exactly what safety stock exists for. A supplier whose delivery swings between 10 and 25 days needs a much larger buffer than one that always takes 14.
Should the reorder point change through the year?
For seasonal products, yes. A reorder point calculated on annual average demand will leave you short in peak season and overstocked afterwards. Recalculate using the demand you expect over the coming lead time, not the demand you have just had.
What happens if I set it too high?
You order earlier than necessary and hold more stock than you need, tying up cash and storage. Too low and you stock out. The cost of each error is rarely symmetrical — work out which is more expensive for your business before splitting the difference.