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Decision fieldOpen accessFabric Mass Unit ConverterGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemoveOpen accessYarnSubGlobalRemove
Decision fit
Primary jobChoose materialsSource productionChoose materials
AreaMaterialsProductionYarn
Best forTranslating the same fabric mass-per-area result between metric and U.S. customary listingsUnderstanding what a tech pack must control before using a template or releasing workReplacing a discontinued or unavailable yarn
Know before usingThe result is a numerical unit conversion, not a new measurement or conformance decision; it does not establish sample or lot representativeness, significant digits, drape, warmth, opacity, thickness, stretch, strength, shrinkage, durability, sewability, end use, target, or tolerance.An orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority.A suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Yarn records can be incomplete or wrong, prices and availability vary by market, and the site uses affiliate links. Confirm the required gauge, total length, fibre behavior, construction, care, color, dye lot, accessibility, and seller terms, then make and assess a representative swatch before committing.
Practical access
ForBothApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatStitch AuthorityStitch AuthorityReference
Source typeStitch AuthorityStitch AuthorityFirst-party platform
Source and review
What the source establishesThe calculator uses the NIST SP 811 Appendix B.8 conversion from avoirdupois ounces per square yard to kilograms per square metre and links to a source-reviewed fabric mass record for method, sampling, conditioning, and product controls.The guide cites current ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it explicitly separates those authorities from product-specific technical and market decisions.YarnSub's official FAQ says its matching software compares gauge, texture, yarn weight and density, fibre content, and fibre qualities such as drape and softness. Discontinued yarns remain searchable as starting points but are excluded from suggested replacements, and each yarn page provides a route to report source-data problems.
Linked page reviewedJul 16, 2026Jul 16, 2026Jul 21, 2026
Next review dueJul 16, 2027Jul 16, 2027Jan 17, 2027
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