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Decision fieldOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemoveOpen accessFabric Mass Unit ConverterGlobalRemove
Decision fit
Primary jobLearn techniquesSource productionChoose materials
AreaYarnProductionMaterials
Best forChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeUnderstanding what a tech pack must control before using a template or releasing workTranslating the same fabric mass-per-area result between metric and U.S. customary listings
Know before usingThe reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric.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.The 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.
Practical access
ForMakersApparel brandsBoth
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatStitch AuthorityStitch AuthorityStitch Authority
Source typeStitch AuthorityStitch AuthorityStitch Authority
Source and review
What the source establishesThe lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred.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.The 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.
Linked page reviewedJul 16, 2026Jul 16, 2026Jul 16, 2026
Next review dueJul 16, 2027Jul 16, 2027Jul 16, 2027
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