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Side-by-side evidence and decision metadata for selected textile resources.
Decision fieldOpen accessFreeSewingGlobalRemoveOpen accessFabric Mass Unit ConverterGlobalRemoveOpen accessTech Pack Definition, Contents & LimitsGlobalRemove
Decision fit
Primary jobFind patterns & fitChoose materialsSource production
Also useful forNo additional job recordedNo additional job recordedNo additional job recorded
AreaPatterns & fitMaterialsProduction
Best forCustom-fit home sewing patternsTranslating 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 work
Know before usingA generated pattern is not independent fit evidence or a production-ready graded block. The result still depends on accurate measurements, the selected design and options, ease assumptions, fabric behavior, construction, and representative test garments. An account stores saved patterns and measurement sets, so review the platform's privacy terms before retaining personal measurements.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.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.
Practical access
ForMakersBothApparel brands
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatSoftwareStitch AuthorityStitch Authority
Source typeOpen-source projectStitch AuthorityStitch Authority
Source and review
What the source establishesFreeSewing's official documentation says the browser editor drafts a selected design in real time from a measurement set rather than scaling or grading a standard-size pattern. Users can adjust design options and export the generated result, including as PDF; saving the pattern to an account is optional and is used to revisit it later.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.The guide cites published ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it discloses that ISO 10013:2021's 2026 systematic review is at close-of-review stage and separates every cited authority from product-specific technical and market decisions.
Linked page reviewedJul 21, 2026Jul 27, 2026Jul 27, 2026
Next review dueJan 17, 2027Jul 27, 2027Jul 27, 2027
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