How to Calculate Clothing Production Cost
Unit cost is fabric, trims, labour, overhead and packing, plus your margin. See a worked example at 100 pcs, with 7-day sampling and 30-day bulk.
7 min read
Clothing production cost breaks into five lines: fabric, trims, labour, factory overhead and packing. Add your own margin, freight and duty on top, and that is your landed cost. The number most buyers get wrong is not the fabric price — it is the setup cost spread across a small quantity. At 50 pcs per color on stock fabric, sampling takes 7 days and bulk takes 30 days from the day the deposit and the confirmed sample are both in place. Below is the full structure, a worked example, and the four levers that actually move the unit price.
The cost structure, line by line
| Line | What is inside | Driver |
|---|---|---|
| Fabric | Body, rib, lining, pocketing, interfacing | GSM, composition, consumption per garment |
| Trims | Zips, buttons, thread, elastic, labels, tags, poly bag | Trim count and branding |
| Cutting | Marker, lay, cutting labour, waste | Fabric width, size curve, marker efficiency |
| Sewing | Machine minutes per operation | Style complexity, seam count |
| Finishing and QC | Pressing, trimming, final inspection, needle detection | Pieces, plus fixed setup |
| Packing | Folding, bagging, carton, carton marks | FBA or retail packing rules |
| Overhead | Factory rent, electricity, supervision, maintenance | Allocated per order |
Three of these behave differently from the rest. Fabric, trims and sewing labour scale with quantity. Cutting setup, sampling and line setup are fixed per style and per color. Overhead is allocated, so its per-piece share falls as volume rises.
The formula
Unit cost = (Fabric + Trims + Labour) + (Fixed setup / Quantity) + Overhead per piece
The first bracket is roughly stable per piece. The middle term is where small orders hurt. The last term is what a factory efficiency programme is really about.
A worked example at 100 pieces
Numbers below are illustrative for a simple cut-and-sew knit top, to show how the arithmetic works, not a quotation for your style.
| Item | Per piece | Notes |
|---|---|---|
| Fabric at 180 GSM, 0.55 kg consumption | $2.20 | Stock fabric, no dye minimum |
| Trims | $0.35 | Thread, care label, size label, poly bag |
| Cutting and sewing labour | $1.60 | Moderate seam count |
| Finishing, QC and needle detection | $0.30 | Every piece passes through the detector |
| Packing | $0.20 | Individual bag, carton marks |
| Subtotal, variable | $4.65 | Scales with quantity |
| Fixed setup spread over 100 pcs | $0.60 | Pattern, grading, line setup |
| Overhead allocation | $0.35 | Rent, power, supervision |
| Factory unit cost | $5.60 | Before your margin and freight |
Now change one variable. At 300 pcs the same order spreads the fixed setup over three times as many pieces, so that line falls from $0.60 to $0.20, and the factory unit cost drops to roughly $5.20 — a 7% reduction with no negotiation at all. That is the entire argument for ordering 300 pieces of one design instead of 100.
Four levers that actually move the price
- Quantity. Fixed setup is the only line that shrinks purely from volume. Doubling the order does more than any pressure on the sewing rate.
- Fabric choice. Stock fabric avoids the mill's dye minimum and shortens the front end. Custom fabric raises the minimum and adds the mill's lead time before the sample can be cut.
- Construction complexity. Every extra seam, lining panel, zip and pocket is machine minutes. Removing one interior lining panel from a dance costume can be worth more than arguing over 3% on labour.
- Marker efficiency. Fabric width, size curve and print direction decide how much fabric is wasted between pattern pieces. An even size curve wastes less than a curve dominated by one size.
What does not move the price much: asking for a discount on the first order, or comparing three quotes from factories of very different size. Unit price differences between factories usually come from different fabric, different construction or different overhead — not from one being generous.
Costs that sit outside the factory quote
Do not stop at the FOB price. The landed cost also includes:
- Sample fee per style and per round — ask for it before sending files, because it depends on the style and the fabric.
- Freight by air, sea or express, plus any inspection or consolidation charges.
- Duty and tax in your destination market.
- FBA or retail prep: FNSKU labels, poly bagging, carton marks. Get these quoted at the same time as the unit price, not after production.
- Defect risk. We agree a defect rate cap in writing before production starts, and anything above the cap is remade or credited at our cost. That clause is worth more than a 2% discount.
- Payment friction. We accept T/T, PayPal and Alibaba Trade Assurance, with deposit terms confirmed with the order. Payment method affects your cash flow and your fees, even when the unit price is identical.
How to compare two quotes properly
Two quotes are only comparable when they describe the same garment. Build a one-page comparison:
| Field | What to write down |
|---|---|
| Fabric | Composition, GSM, tolerance, supplier |
| Consumption | kg or meters per piece, and who calculates it |
| Construction | Seams, lining, trims, finishing standard |
| Size curve | Pieces per size, and whether it is included in the quote |
| Packing | Bag spec, labels, carton marks, in or out |
| MOQ | Per color, and whether mixing is allowed |
| Lead time | Start condition: deposit and approved sample |
| QC terms | Defect cap, inspection rights, after-sales window |
If a quote cannot answer the first four rows, it is not a quote yet — it is an indication. Send your style through and ask for the missing rows; a factory that answers them is the one that will not surprise you at invoice time.
Where to start
Our published numbers are the ones we quote on the order: MOQ 50 pcs per color on stock fabric, 200 pcs in total for mixed colors and sizes, sampling in 7 days, bulk in 30 days. The style-level limits and per-category process lists are on the manufacturing capabilities page, and the full commercial set — MOQ, sampling, lead time, payment and after-sales — is on our working terms. To price your actual style, send the fabric, construction details and target quantity through the enquiry form and we reply within 24 hours with a price, fabric options and a sampling date.
Frequently asked questions
Why is my unit price higher than the quote I saw online?
Online figures are usually for a much larger quantity, or for a lighter fabric with fewer operations. The fixed part of the cost — pattern, grading, cutting setup, line setup — is spread over your order size, so a 100-piece order carries more setup per piece than a 1,000-piece order. Ask any factory to state the quantity the quote assumes, then compare like for like.
What is the cheapest way to lower my cost per piece?
Increase the quantity of a single design rather than adding designs, and stay on stock fabric. A repeat order is the cheapest of all, because the pattern and grading are already done, your approved sample is on file, and there is no new development cost. Removing one construction detail, such as an interior pocket or a lining panel, also moves the price more than most negotiations.
Does the quote include packing and labels?
It depends on the factory and on the label spec, so ask explicitly. We quote labelling, bagging and carton marks when you tell us the requirements at quotation stage, which is much cheaper than adding them after production. Tell us if the goods go to Amazon FBA, since the packing rules differ from retail packing and affect both cost and the packing line schedule.