Garment Calculator Suite
The production maths that gets done on the back of a docket, made repeatable. Fabric consumption, line efficiency, SAM-based capacity and simple costing, each with the assumptions written down next to the result.
This toolkit is completely free. NOSK.life never takes a single penny — no payments, no subscriptions, no hidden fees.
What's inside
- Fabric consumption estimators for knit and woven basics
- Line efficiency and SAM-based capacity calculators
- Costing sheet with material, CM and overhead breakdown
- Defect rate and DHU converters for quality reporting
- Assumption notes beside every formula so results can be defended
- Cost-per-standard-minute worksheet derived from annual conversion cost
- Quoted-versus-actual variance sheet for post-shipment review
Who it's for
- Industrial engineers and production planners
- Merchandisers quoting and validating order costs
- Students and trainees learning apparel production maths
- Small factories that quote without a costing system
Worked examples
- Basic knit tee, 1.62 m at 6 percent wastage
- The consumption estimator shows the fabric cost, and the assumption note records marker efficiency and end-loss separately — so a later variance of two percent can be attributed rather than argued about.
- 22-minute garment at two efficiencies
- At 50 percent efficiency the CM is materially higher than at 65 percent. The calculator prints both, which makes the efficiency assumption part of the quotation instead of a hidden risk.
- DHU to defect rate conversion
- A line reporting 38 defects across 420 audited garments converts to a DHU figure comparable with other lines, even though the audit sample sizes differ.
What changes measurably
- Quotations that can be checked line by line
- One factory-wide minute cost instead of per-order improvisation
- Variance reviews that improve the next quotation
Write the assumption next to the number
Every calculator has an assumptions field. A consumption figure without its marker efficiency and wastage allowance is not a number anyone can check.
Calibrate against actuals
Feed last season's real consumption and efficiency back into the inputs. Calculators are only as good as the factory data behind them.
Fix the minute cost once a year
Derive cost per standard minute from annual conversion cost and productive minutes available, then hold it constant across styles. Re-deriving it per order is how difficult styles end up subsidised by easy ones.
Common questions
- Are the calculators available on the site?
- Yes — the same logic powers the NOSK.life calculator hub, so you can use it in the browser or keep the offline sheets.
- Do the consumption formulas cover prints and stripes?
- The estimators cover plain knit and woven basics; for stripes, checks and placed prints you add a matching allowance, and the sheet prompts for it.
- Can I use it for quoting FOB prices?
- The costing sheet builds materials, CM, commercial cost and margin separately, which is the structure an open FOB quotation needs.
Media Hub explainers behind this
Free photo and diagram walk-throughs that explain the fabric, pattern and machinery detail this material relies on — no fees, ever.
Patterns · Free
Marker efficiency: where fabric cost is really decided
How marker planning, spreading and ply management move consumption by several percent — and what that means per order.
Patterns · Free
From measurement chart to pattern block
How ease, tolerances and body measurements turn into a first pattern — and where fit problems are actually created.
Quality checks · Free
How garment measurement checks and tolerances work
How to measure to the buyer's point of measure, apply tolerance correctly and tell a real fit failure from measurement noise.
Fabrics · Free
Woven vs knit: how fabric construction changes everything
Warp and weft versus loops and courses — why the same fibre behaves completely differently once it is woven or knitted.
Real contacts for this topic
Factories, mills, suppliers, buyers and industry bodies from the free NOSK.space garment directory that work directly with garment calculator suite. Every detail below is published on the organisation's own site and each link opens that site — free of charge, no introductions sold, no commission taken.
Lectra
Paris · France
CAD pattern making, marker making and automated cutting
- Address
- 16-18 rue Chalgrin, 75016 Paris, France
- Phone
- +33 1 53 64 42 00
Arvind Limited
Ahmedabad · India
Denim, woven shirting and garment manufacturing
- Address
- Naroda Road, Ahmedabad 382 345, Gujarat, India
- Phone
- +91 79 6826 8000
- investor@arvind.in
Epic Group
Hong Kong · Hong Kong SAR (plants in Bangladesh, Vietnam, Ethiopia, Jordan)
Multi-country apparel manufacturer and sourcing group
DBL Group
Dhaka · Bangladesh
Vertically integrated knitwear manufacturing, spinning, dyeing and printing
- Address
- South Avenue Tower, House 50 (6th Floor), Road 3, Gulshan Avenue, Dhaka 1212, Bangladesh
SHIMA SEIKI
Wakayama · Japan
Computerised flat knitting machines and whole-garment knitting
- Address
- 85 Sakata, Wakayama-shi, Wakayama 641-8511, Japan
- Phone
- +81 73 474 8210
Shahi Exports Pvt. Ltd.
Bengaluru · India
India's largest apparel exporter — knits, wovens and fabric processing
- Address
- Bellandur Gate, Sarjapur Main Road, Bangalore 560 102, Karnataka, India
Request this toolkit
Tell us which factory role you're using it in and we'll send the current file version along with any notes on adapting it.
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