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| Decision field | Open accessFabric Mass Unit ConverterGlobalRemove | Open accessFreeSewingGlobalRemove | Open accessQuiltMapGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Choose materials | Find patterns & fit | Choose materials |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Materials | Patterns & fit | Materials |
| Best for | Translating the same fabric mass-per-area result between metric and U.S. customary listings | Custom-fit home sewing patterns | Finding quilt-material sellers and adjacent quilting services by country or map |
| 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. | A 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. | Coverage is quilting-specific and uneven by country; businesses can pay for enhanced features, and community or owner updates do not verify inventory, service quality, hours, or availability. |
| Practical access | |||
| For | Both | Makers | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Open access | Open access |
| Format | Stitch Authority | Software | Directory |
| Source type | Stitch Authority | Open-source project | First-party platform |
| 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. | FreeSewing'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. | QuiltMap describes free public search and free basic listings, community submissions and claims, and country routes covering North America, Europe, Japan, South Korea, and Australia. |
| Linked page reviewed | Jul 27, 2026 | Jul 21, 2026 | Jul 15, 2026 |
| Next review due | Jul 27, 2027 | Jan 17, 2027 | Jan 11, 2027 |
| Inspect | |||
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