Inventory calculator
Economic Order Quantity Calculator
Estimate an economic replenishment quantity from annual demand, cost per order, and annual holding cost per unit.
Your inputs
Live resultNeed the repeatable version?
Carry this result into the $19 operations workbook.
Batch calculations, quote comparisons, landed cost, pallet planning, and margin sheets stay connected in one editable Excel file.
Method & limits
How this estimate works
FreightKit keeps the working visible so you can sense-check the answer before using it in a decision.
EOQ = √(2 × annual demand × order cost ÷ annual holding cost per unit)
The classic EOQ model assumes steady demand, stable costs, immediate replenishment, and no stockouts or quantity discounts.
This calculator is a planning aid, not a carrier quotation, engineering assessment, or professional advice. Verify critical figures against current supplier and carrier documentation.
Use the number well