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Decision fieldOpen accessFabric Mass Unit ConverterGlobalRemoveOpen accessPattern Test Brief TemplateGlobalRemoveOpen accessHook & Needle Diameter ReferenceGlobalRemove
Decision fit
Primary jobChoose materialsFind patterns & fitLearn techniques
AreaMaterialsPatterns & fitYarn
Best forTranslating the same fabric mass-per-area result between metric and U.S. customary listingsPlanning a sewing, knitting, or crochet pattern testChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge
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.The workflow is not a contract or quality certification; local legal duties and technical review may still apply.The 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.
Practical access
ForBothBothMakers
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatStitch AuthorityStitch AuthorityStitch Authority
Source typeStitch AuthorityStitch AuthorityStitch Authority
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 linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.The 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.
Linked page reviewedJul 16, 2026Jul 15, 2026Jul 16, 2026
Next review dueJul 16, 2027Jul 15, 2027Jul 16, 2027
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