Stockr · Free inventory tools

Safety Stock Calculator

Estimate a buffer for demand and lead-time variability using a common practical formula: (maximum daily demand × maximum lead time) − (average daily demand × average lead time).

How to use safety stock

Safety stock is a buffer, not a target inventory level. Combine it with lead-time demand to set a reorder point, and revisit the inputs when sales patterns or suppliers change.

Calculate your reorder point →

Keep the numbers connected to real stock

Stockr helps track quantities, low-stock alerts, suppliers and purchase orders so replenishment decisions are easier to act on.

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