Free MOQ Calculator with EOQ Analysis
Find your economic order quantity, check it against the supplier minimum, and see exactly what that MOQ costs you every year before the next purchase order goes out.
Calculate EOQ and MOQ Impact
Order quantity, cost balance, and MOQ premium
EOQ Results
Run a calculation to see the optimal order size
EOQ
--
The economic optimum
Recommended Order
--
The EOQ clears any minimum you entered
Orders / Year
--
Order Cycle
--
Cash In Stock
--
Average inventory value at this order size.
Annual Ordering Cost
--
Annual Holding Cost
--
Total Annual Inventory Cost
--
Ordering + holding. Excludes the goods themselves.
Annual Purchase Cost
--
The goods. Unchanged by order size, shown for context.
Inventory Cost Per Unit
--
How EOQ and MOQ Analysis Works
The model balances the cost of placing orders against the cost of carrying inventory between them.
1. Ordering cost
Every PO carries a real cost in freight coordination, customs, admin time, and inspection. Ordering too often makes that cost compound.
2. Holding cost
Buying too much pushes cash into inventory and increases storage, insurance, and obsolescence risk over the time it sits.
3. Supplier MOQ reality
The economic answer still has to clear the supplier minimum. When it does not, this page prices exactly what that minimum costs you per year.
The Formulas This Calculator Uses
Nothing here is hidden. These are the exact calculations behind every number above.
Economic order quantity
√((2 × annual demand × cost per order) ÷ holding cost per unit)
Holding cost per unit is your unit cost multiplied by the annual holding percentage.
Total annual inventory cost
(demand ÷ order qty × cost per order) + (order qty ÷ 2 × holding cost)
At the EOQ these two halves are equal. That is the property that defines it.
MOQ premium
total cost at the MOQ − total cost at the EOQ
The full cost gap, not just the extra holding cost. Ordering less often saves ordering cost, and that offset belongs in the number.
What sits outside the model
EOQ assumes steady demand and a fixed unit cost. Volume discounts, lead-time risk, and freight breakpoints are not in it, so check those with the lead time calculator and the landed cost calculator.
Why MOQ Analysis Matters
Stop over-ordering
A clean EOQ view shows when supplier minimums are pushing inventory well above the economic optimum.
Protect working capital
Right-sized purchase quantities leave more cash available for freight, marketing, and the next order cycle.
Make supplier tradeoffs visible
When MOQ exceeds EOQ, you can quantify the annual premium and take that number into the negotiation.
Demand planning
Match order rhythm to actual usage
Cost control
See the inventory penalty clearly
MOQ and EOQ Calculator FAQ
More Free Tools
View allPurchase Order Creator
Build a purchase order online and download it as a PDF
Amazon Profit Calculator
FBA profit, margin, ROI, and break-even ACoS after every major cost
Dropshipping Profit Calculator
Ecommerce profit, margin, ROI, and break-even ROAS after every major cost
Profit Margin Calculator
Gross margin, net margin, markup, and the price for a target margin
Import Duty Calculator
Calculate customs duties, tariffs, and total import taxes
Landed Cost Calculator
True cost per unit including freight, duties & all fees
The calculator is free. The inputs are the hard part.
An EOQ is only as good as the costs behind it.
Unit cost, freight, duty, and prep all move between orders, and every one of them shifts the answer above. SupplyAutomate keeps purchase orders, supplier pricing, and real landed costs in one workspace, so the next time you size an order you are working from what you actually paid.
SupplyAutomate
Example order sizing
SKU CB-1180 · supplier MOQ 5,000
$2,250
Annual cost of meeting the minimum
2,000
Economic order quantity
$25,000
Cash tied up at the MOQ
$0.73
Inventory cost per unit
Take the premium into the negotiation instead of absorbing it quietly.