Looking for an easy way to calculate your Economic Order Quantity (EOQ)? Our free online EOQ calculator helps businesses determine the optimal order quantity to minimize inventory costs. Whether you’re managing a small business or overseeing a large supply chain, our EOQ tool makes it simple to calculate the right number of units to order while cutting down on unnecessary costs.

How to Use the EOQ Calculator Online
Our EOQ calculator requires just a few inputs:
- Annual Demand (D) – The number of units you sell or use in a year.
- Ordering Costs (S) – Costs associated with placing an order, including shipping and handling.
- Holding Costs (H) – The cost to store one unit in inventory for a year, including warehousing and insurance.
(Instruction: Simply input these values into our EOQ calculator, click ‘Calculate,’ and get your results instantly.)
EOQ Calculator
Why Use an Online EOQ Calculator?
Calculating EOQ manually can be tedious, especially if you have multiple product lines or fluctuating costs. Our EOQ calculator online simplifies the process by providing quick, accurate results that help you:
- Reduce ordering costs
- Lower holding costs
- Maximize cash flow
- Prevent stockouts and overstocking
EOQ Formula Explained
The EOQ formula is used to calculate the optimal order size by minimizing the total inventory costs:
EOQ = √((2 × D × S) / H)
Where:
- D = Annual Demand (units)
- S = Ordering Cost (per order)
- H = Holding Cost (per unit, per year)
Examples of Using the EOQ Formula
For example, if your business sells 10,000 units of a product per year, with an ordering cost of $50 and a holding cost of $5 per unit per year, the EOQ calculation would look like this:
EOQ = √((2 × 10,000 × 50) / 5) = √(200,000) ≈ 447 units
This means that the most cost-effective order size for you would be 447 units per order to minimize your overall costs.
What are Ordering Costs and Holding Costs?
- Ordering Costs: These are the expenses associated with processing and placing an order, such as administrative fees, shipping charges, and handling costs.
- Holding Costs: Also called carrying costs, these include storage fees, insurance, depreciation, and opportunity costs tied to holding inventory.
By using the EOQ formula, businesses can minimize these costs while maintaining optimal stock levels.