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| Decision field | Open accessSewing Length ConverterGlobalRemove | Open accessTech Pack Definition, Contents & LimitsGlobalRemove | Open accessYarn Database EU Dyers and MakersEuropean UnionRemove | Open accessKnittyGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Source production | Choose materials | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Production | Yarn | Yarn |
| Best for | Translating a length already stated by a pattern, controlled specification, sewing tool, or seam allowance | Understanding what a tech pack must control before using a template or releasing work | Finding independent EU yarn or fibre dyers with off-Ravelry purchase routes | Free editorial knitting patterns and techniques |
| Know before using | This is a length-unit translation reference. It does not identify the measured feature; select, approve, or change a seam allowance; establish a universal fraction; interpret an unstated cutting or stitching line; or replace the exact pattern version, controlled specification, material and seam evidence, sample, production method, equipment, tolerance, or release authority. | 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. | It is one curator's intentionally selective, off-Ravelry-oriented database, inventories change, and paid supporters can receive rotating priority placement; verify availability, fibre claims, shipping, and terms directly. | Free access does not grant commercial reproduction or sale rights; uses beyond one personal copy must be resolved with the designer or author. Knitty says it tries to avoid errors but disclaims responsibility for pattern and technique inaccuracies. Check the live page for corrections, verify gauge and measurements, and confirm permission before any commercial use. |
| Practical access | ||||
| For | Both | Apparel brands | Makers | Makers |
| Location or jurisdiction | Global | Global | European Union | Global |
| Access | Open access | Open access | Open access | Open access |
| Format | Stitch Authority | Stitch Authority | Directory | Reference |
| Source type | Stitch Authority | Stitch Authority | Community database | First-party platform |
| Source and review | ||||
| What the source establishes | NIST states that 10 millimetres equal 1 centimetre and that one inch is exactly 25.4 millimetres. The tool uses those relationships, displays rounded equivalents, exposes the size difference to the nearest 1/16 inch when converting to inches, and preserves valid value, source-unit, and target-unit state in the URL. | 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. | The individually researched database offers free listings and sortable yarn, fibre, designer, editor, accessory, and location views; the EU page spans multiple countries and direct seller profiles. | Knitty currently publishes web-only editorial issues containing original knitting and crochet patterns and articles. Its legal page states that patterns are free for one person's personal use, identifies each designer or author as the copyright holder, and explains that verified pattern corrections are posted in bright pink on the pattern page. |
| Linked page reviewed | Jul 30, 2026 | Jul 27, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Jul 30, 2027 | Jul 27, 2027 | Jan 11, 2027 | Jan 17, 2027 |
| Inspect | ||||
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