Economic Order Quantity (EOQ) Calculator
Calculation Results
Note: The EOQ model assumes constant demand and costs, and does not account for quantity discounts or lead time variability unless safety stock is added.
The Economic Order Quantity (EOQ) Calculator is a practical tool designed to help businesses, supply chain managers, and inventory planners determine the optimal number of units to order, minimizing total inventory costs. EOQ is a proven inventory management formula that balances the cost of ordering with the cost of holding inventory. By using our online EOQ calculator, you can make informed decisions that reduce waste, improve cash flow, and ensure you have the right stock at the right time.
This calculator is especially valuable for businesses that manage physical goods, from small retailers to large-scale manufacturing operations. Instead of relying on guesswork or outdated ordering patterns, you can use EOQ to base your purchasing strategy on data. It calculates the quantity that minimizes combined ordering and holding costs, helping you maintain efficiency and profitability.
To use the EOQ calculator, simply enter three key values:
Annual Demand – The total number of units your business expects to sell or use in a year.
Ordering Cost per Order – The fixed cost incurred each time an order is placed, such as administrative expenses, shipping fees, and supplier charges.
Holding Cost per Unit per Year – The expense of storing each unit for a year, including warehousing, insurance, and depreciation.
Once these values are entered, the tool instantly applies the EOQ formula.
The result shows the ideal order quantity that keeps total inventory costs as low as possible. This can be used to plan purchasing schedules, negotiate with suppliers, and optimize warehouse operations.
Our EOQ calculator is completely free to use, works directly in your browser without registration, and provides fast, accurate results. By applying EOQ principles, you can avoid overstocking, prevent stockouts, and keep your business running smoothly.
Whether you’re a student learning about operations management, a small business owner looking to improve efficiency, or a supply chain professional seeking accurate order planning, this tool offers a quick and reliable way to implement EOQ in your workflow.
Start using the Economic Order Quantity Calculator today to streamline inventory management, save costs, and support smarter business decisions.