Free Tool · Inventory Management · No sign-up
EOQ Calculator
The Economic Order Quantity (EOQ) calculator finds the ideal number of units to order at once, minimising your combined ordering and holding costs. Enter your annual demand, order cost, and carrying cost to instantly see your optimal order quantity, how often to reorder, and your total annual inventory cost. Compare against your current order size to see exactly how much you could save.
20–30%
Typical holding cost rate
Industry standard carrying cost as a percentage of unit purchase cost for most product categories
2×
EOQ insight
At the optimal order quantity, your ordering cost always equals your holding cost — this is the mathematical sweet spot
$500–$5,000
Average annual savings
Typical annual inventory cost savings when SMBs switch from gut-feel ordering to EOQ-based purchasing