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Decision fieldOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessFabric Mass Unit ConverterGlobalRemoveOpen accessNMSU Pattern Alteration GuideUnited States · North AmericaRemove
Decision fit
Primary jobLearn techniquesChoose materialsFind patterns & fit
AreaYarnMaterialsPatterns & fit
Best forChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeTranslating the same fabric mass-per-area result between metric and U.S. customary listingsChecking a common flat-pattern alteration method
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.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.The guide's general womenswear diagrams and ease ranges are teaching examples, not an individual diagnosis, current commercial-pattern specification, or complete fitting course. A named symptom can have several causes, and alterations may affect adjoining seams, facings, collars, sleeves, balance, and style. Verify the method against the exact pattern and test the coordinated changes on a muslin.
Practical access
ForMakersBothMakers
Location or jurisdictionGlobalGlobalUnited States · North America
AccessOpen accessOpen accessOpen access
FormatStitch AuthorityStitch AuthorityReference
Source typeStitch AuthorityStitch AuthorityGovernment guidance
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 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.New Mexico State University's current Cooperative Extension Guide C-228 explains three alteration methods, folding out fullness, slashing and spreading or overlapping, and redrawing darts or seams. It provides illustrated bodice, sleeve, skirt, and trouser examples and tells readers to compare body measurements plus intended ease with the pattern while preserving grain, design lines, related-piece changes, and comfort ease.
Linked page reviewedJul 16, 2026Jul 16, 2026Jul 21, 2026
Next review dueJul 16, 2027Jul 16, 2027Oct 19, 2026
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