Minimum Order Quantity (MOQ) Calculator

The Minimum Order Quantity (MOQ) is the smallest number of units a supplier will sell in a single order. For buyers, calculating whether an MOQ is viable requires comparing it to your projected sales velocity and storage cost.

Supplier’s MOQ Rationale:

MOQ = Minimum Profitable Batch = Fixed Setup Cost / (Margin Per Unit)

Buyer’s Viable Order Analysis:

Months of Inventory = MOQ / Monthly Sales Volume

Working Capital Tied Up = MOQ × Unit Cost

Carrying Cost Per Month = Working Capital × Monthly Carrying Rate (typically 1.5–3%)

Break-Even Check:

Viable if: Monthly Margin Gain from Lower MOQ Price > Monthly Carrying Cost Increase

Worked Example:

• Supplier MOQ: 500 units at $4.50/unit
• Spot buy (no MOQ): $6.00/unit
• Your monthly sales: 80 units
• Months of inventory at MOQ: 500 / 80 = 6.25 months

Cost analysis:

• MOQ purchase cost: 500 × $4.50 = $2,250
• Monthly carrying cost (2%): $2,250 × 0.02 = $45/month
• Savings per unit vs spot: $6.00 − $4.50 = $1.50 × 80/month = $120/month
• Net benefit = $120 − $45 = $75/month savings → MOQ is viable

The calculator does both halves. The headline is the seller-side break-even: with a $500 setup cost, a $3.50 unit cost and a $12.99 selling price, the margin is $12.99 − $3.50 = $9.49 per unit, so the break-even MOQ = ⌈$500 ÷ $9.49⌉ = 53 units. Fill in the optional buyer-side fields as well and it runs the carrying-cost analysis above on your own numbers.

When MOQ is NOT viable: when the monthly carrying cost exceeds the per-unit savings. That is common for seasonal products, low-turnover niches, and anything with a shelf life, and it is the calculation people skip because the per-unit discount is the number the supplier puts in front of them.

Negotiation Tip: Suppliers often accept a 20–30% lower MOQ if you commit to a blanket purchase order with scheduled releases over 3–6 months.