How do I know if a factory can handle my volume?

Ask for their Daily Output Capacity for your specific product line. Divide your P.O. quantity by their daily output. If your order requires 90% of their capacity for a month, they are likely to delay you or outsource to unvetted sub-contractors. Aim to be 10-20% of a factory's output to ensure importance without over-leveraging their resources.

🏭 Manufacturing & Quality

Factory Capacity Calculator — China Manufacturing Output

Use our factory capacity calculator to calculate factory production capacity and whether your order can be completed by your required date. Estimate output per day/week/month.

Updated: 2026-04-13

Planning Reference

Standards Last Reviewed April 2026

Reference Basis

Based on AQL sampling tables, industry-standard inspection benchmarks, and typical China factory lead time data.

Planning Note

Actual defect rates, lead times, and inspection outcomes vary by factory and product. Use these as planning benchmarks.

Primary opportunity

factory capacity calculator
Low SERP difficulty

Number of Production Lines / Machines lines Number of parallel production lines or key machines for your product.

Operating Hours Per Day hours Factory working hours. Most China factories: 8 hours standard, 10–12 hours with overtime.

Working Days Per Month days Standard China factory: 26 days (6 days/week). Subtract any holiday periods.

Units Per Hour Per Line units/hr Actual production rate per line per hour. Get this from the factory — it varies widely by product complexity.

Efficiency Factor % Real-world efficiency vs theoretical max. 80–90% is typical for experienced factories; 70% for complex products.

Your Order Quantity (MOQ) units Your order size — used to calculate production lead time.

Factory Capacity Planning

Understanding your supplier's theoretical and actual capacity prevents you from scaling too fast with the wrong partner. A massive surge in orders handed to a factory without adequate capacity generally results in rushed production, skipped QC steps, and catastrophic defect rates.

Tips for China Importers

Always inspect before shipment for orders over $3,000. A $350–450/day inspector fee is almost always cheaper than shipping defective goods and dealing with returns, chargebacks, and Amazon removal.
Specify AQL levels in your purchase order. AQL 2.5 is standard for most consumer goods. Use AQL 1.0 for electronics, children's products, or anything safety-critical. No AQL spec = no standard.
Write your product specs in Chinese. Most quality failures come from unclear specifications, not malicious intent. Translate your spec sheet — it costs $50–100 and prevents $5,000 rework orders.
Build buffer days into your lead time. Even reliable factories hit delays. Add 7–14 days to any factory-quoted lead time, especially around Chinese New Year, Golden Week, and Labour Day holidays.
Test your production sample, not just your pre-production sample. Factories sometimes pass pre-production samples and cut corners in mass production. Always test a random production-run unit before approving shipment.