Enter your own numbers below to calculate a reorder point, safety stock buffer, and economic order quantity (EOQ) for a single SKU. See the reorder point and EOQ glossary pages for how each formula works and when it applies.
Reorder point & safety stock
Safety stock
80.0 units
Reorder point
150.0 units
Economic order quantity (EOQ)
Economic order quantity
427 units per order
How to use these numbers
Set this product's minimum stock level in StockFlow to the reorder point above—that is what triggers a low-stock alert. Use the EOQ figure as a reference for how many units to order each time, keeping in mind it assumes fairly steady demand; adjust down for seasonal or perishable items.
Run this per SKU rather than once for your whole catalog—usage rate, lead time, and cost all vary by product, and a single reorder point applied everywhere under- or over-buffers most of your items.
Frequently Asked Questions
What is the reorder point formula used here?
Reorder Point = (Average Daily Usage × Average Lead Time) + Safety Stock, where Safety Stock = (Maximum Daily Usage × Maximum Lead Time) − (Average Daily Usage × Average Lead Time).
What is the EOQ formula used here?
Economic Order Quantity = √(2 × Annual Demand × Order Cost ÷ Carrying Cost per Unit). It calculates the order size that minimizes combined ordering and carrying cost.
Does this calculator save my numbers?
No. This is a client-side calculation only—nothing is sent to a server or saved. Refreshing the page resets it to the defaults.
Does StockFlow calculate reorder points automatically for my products?
StockFlow does not run these formulas for you automatically. You set a minimum stock level per product, which functions as its reorder point, and StockFlow sends a low-stock alert once quantity on hand reaches it. Use this calculator to work out what that number should be.
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