sqrt((2 x Demand x Order Cost) / Holding Cost)Inventory calculator
Economic Order Quantity Calculator
Balance ordering and holding costs to estimate ideal order quantity.
Your figures stay on this device
Under the hood
Understand the number
Use the formula and notes below to check whether the result fits your real operating conditions.
- Demand
- Annual unit demand.
- Order Cost
- Cost to place one order.
- Holding Cost
- Annual holding cost per unit.
Enter a realistic current order or SKU, then compare the result with your target.
Change one variable at a time to see which operational lever matters most.
This tool is for planning and education. It is not financial, tax, legal or carrier rating advice. Rounding uses two decimal places unless the result is naturally a unit count.
Related calculators
FAQ
Are my inputs stored?
No. Calculator inputs run in your browser and are not submitted.
When was this checked?
Last reviewed on August 25, 2026. Changing third-party fees should be verified from official sources.
Sources
For carrier dimensional weight and marketplace fees, verify current official documentation before operational use.