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| Decision field | Open accessFabric Mass Unit ConverterGlobalRemove | Free accountRibblrGlobalRemove |
|---|---|---|
| Decision fit | ||
| Primary job | Choose materials | Find patterns & fit |
| Area | Materials | Patterns & fit |
| Best for | Translating the same fabric mass-per-area result between metric and U.S. customary listings | Following interactive patterns with progress tools |
| Know before using | 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. | Ribblr supplies the reading and publishing format, but each designer remains responsible for the pattern's math, sizing, instructions, testing, corrections, licence, and support. Interactive conveniences do not prove fit or technical accuracy. Pattern prices and available features vary, and following an ePattern depends on an account and continued platform access. |
| Practical access | ||
| For | Both | Makers |
| Location or jurisdiction | Global | Global |
| Access | Open access | Free account |
| Format | Stitch Authority | Marketplace |
| Source type | Stitch Authority | Commercial marketplace |
| Source and review | ||
| What the source establishes | 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. | Ribblr's current ePattern manual documents line-by-line progress tracking, size-specific instructions, interactive charts, counters, attached media, stitch tutorials, unit handling, and left-hand display options. Its Ribbuild guidance says designers can create and test interactive crochet, knitting, and sewing patterns inside the platform. |
| Linked page reviewed | Jul 16, 2026 | Jul 21, 2026 |
| Next review due | Jul 16, 2027 | Jan 17, 2027 |
| Inspect | ||
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