Your Results
Economic Order Quantity (Units)
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The optimal number of units to order each time to minimize total costs.
Total Annual Ordering Cost ($)
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The total cost of placing all orders in a year.
Total Annual Holding Cost ($)
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The total cost of storing inventory for a year.
Total Annual Inventory Cost ($)
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The sum of annual ordering and holding costs.
Number of Orders Per Year
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How many orders are placed annually based on EOQ.
How This Calculator Works
The EOQ formula calculates the optimal order size by considering annual product demand, the cost to place an order, and the cost to hold one unit in inventory for a year. It identifies the point where the combined annual ordering and holding costs are at their lowest.
When to Use This Tool
A snack food brand launching a new granola bar needs to set an initial production batch size to meet projected demand without overstocking.
The EOQ calculator reveals the most efficient production run quantity, preventing excess inventory costs while ensuring product availability.
A beverage company wants to optimize its monthly orders for a popular sparkling water flavor, considering supplier lead times and warehouse capacity.
It provides the ideal order size that minimizes the combined expense of placing orders and storing the product, improving cash flow.
A frozen meal producer aims to reduce inventory costs for a high-volume staple ingredient like chicken breast, purchased regularly from a supplier.
The tool identifies the optimal purchase quantity, helping negotiate better terms and reducing overall supply chain expenditure.
Common Questions
Does EOQ account for bulk purchase discounts from suppliers?
The basic EOQ model does not directly incorporate quantity discounts. You would typically calculate the EOQ, then compare the total cost at that quantity with the total costs at various discount breakpoints to find the true optimal order size.
How often should I recalculate my Economic Order Quantity?
You should recalculate EOQ whenever there are significant changes to your annual demand, ordering costs, unit costs, or holding cost rates. This might be quarterly, semi-annually, or annually, depending on your business volatility.
What if my demand is seasonal or unpredictable?
For highly seasonal or unpredictable demand, EOQ provides a baseline. You may need to combine it with other inventory strategies like demand forecasting, safety stock calculations, or period-based ordering to manage fluctuations effectively.
Is EOQ the same as a reorder point?
No, EOQ tells you how much to order, while the reorder point tells you when to order. The reorder point considers lead time and daily demand to ensure you don't run out of stock before a new order arrives.
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