Why economic order quantity (EOQ) matters to a first-time founder
EOQ gives inventory businesses a starting point for balancing frequent small orders against the cost of storing larger quantities. Ordering too little raises administration and delivery costs; ordering too much ties up cash and risks damage or obsolescence. The model makes those trade-offs visible, even when reality requires adjustments.
Examples of economic order quantity (EOQ)
A retailer expects to sell 2,400 units a year, spends $25 to place each order and estimates annual holding cost at $6 per unit. The EOQ formula gives roughly 141 units per order. The buyer rounds sensibly, then adjusts for supplier pack sizes, minimum orders and seasonal demand.
Common misunderstanding
EOQ is not a guaranteed perfect purchase quantity or the same as a reorder point. The basic model assumes steady demand, known costs and reliable replenishment, while the reorder point answers when to order. Discounts, perishability, uncertain demand and limited storage can make the calculated quantity impractical.
When to use it
Use EOQ when an item has repeat demand and you can estimate ordering and holding costs. Review the inputs as prices, lead times or demand change. Skip formal calculation for rare purchases or highly unpredictable products; a simple minimum and maximum stock policy may be more useful at that stage.