// multi-utility computation suite · offline · instant · precise
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eng.economic-order-quantity Calculator
Calculates the classical Economic Order Quantity (EOQ) from annual demand, ordering cost, and unit holding cost rate. The EOQ minimises total inventory cost by balancing ordering frequency against holding cost — the square root formula means errors in inputs have muted effects on the optimal Q.
Inputs
D Units Year
Reference formula or conversion factor shown for context.
S Order Cost
Reference formula or conversion factor shown for context.
H Holding Pct
Reference formula or conversion factor shown for context.
Unit Cost
Reference formula or conversion factor shown for context.
Results
EOQ (units)
Sample size or count used in the calculation.
orders per year
Reference formula or conversion factor shown for context.
order cycle (days)
Reference formula or conversion factor shown for context.
total annual inventory cost ($)
The result expressed on a per-year basis.
EOQ = √(2DS/H)
Reference formula or conversion factor shown for context.