Free tool

Reorder point calculator

Enter your sales and supplier lead time. Get your reorder point, days of stock left, the date to order by, and how many units to buy.

Units sold Over how many days Units on hand now Units already on order Supplier lead time (days) Safety stock (days) Each order should last (days) Case pack (optional)

Assumes steady demand. For seasonal products, adjust daily sales up or down for the season ahead.

How the reorder point is calculated

Reorder point = daily sales × lead time + daily sales × safety days

When your stock on hand (plus anything already on order) falls to this number, it's time to place the order. Read the full method in our inventory forecasting guide.

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