Editorial Standards & Content Quality Policy

Last reviewed: February 2026

Our Commitment to Accuracy

At Crochet Calc, accuracy isn't optional — it's foundational. Every calculator formula, data table, gauge range, and hook size conversion on this site has been verified against authoritative industry sources. We don't publish content based on assumption or hearsay. Every claim is traceable to a recognized source, tested through real-world swatching, or validated by experienced fiber arts professionals with verifiable credentials.

How We Research Content

All content follows a structured research process:

• Primary Sources: We reference the Craft Yarn Council (CYC) published standards for yarn weight categories, gauge ranges, and hook size pairings. CYC is the industry body that sets the universal yarn weight numbering system (categories 0-7) used globally by yarn manufacturers.
• Professional Organizations: The Crochet Guild of America (CGOA), The National NeedleArts Association (TNNA), and Ravelry's designer community provide supplementary data and peer validation.
• Published Reference Books: We cross-reference data against established fiber arts textbooks, including "The Crochet Answer Book" by Edie Eckman, "Donna Kooler's Encyclopedia of Crochet," and CYC official publications.
• Real-World Testing: Our team physically tests gauge calculations, hook size recommendations, and yarn yardage estimates using actual swatches with multiple yarn brands and hook types before publishing.

How We Write Articles

Every article on Crochet Calc is written by a team member with direct, hands-on crochet experience. We don't outsource content to writers who don't crochet. Our writing process ensures that advice comes from practitioners, not theorists:

• Author Qualification: Articles are written by team members with a minimum of 5 years of active crochet practice. The author's name, credentials, and experience are displayed on each article.
• Experience-Based Guidance: Where possible, we share first-hand experiences, lessons learned from personal projects, and practical tips that can only come from actually crocheting — not from reading about it.
• Helpful Content Focus: Every article is written for people, not search engines. We ask: "Would a crocheter find this genuinely useful?" If the answer isn't a clear yes, we revise or don't publish.

Our Review & Fact-Checking Process

Before any content goes live, it passes through a three-step review:

• Step 1 — Author Self-Review: The author verifies all data points, rechecks formulas, and ensures all claims are sourced.
• Step 2 — Expert Peer Review: A second team member (our content reviewer, Maria Gonzalez, a 30-year fiber arts instructor) reviews the article for accuracy, completeness, and practical usefulness.
• Step 3 — Technical Validation: Any calculator formula or mathematical claim is independently verified by our technical lead using multiple test cases with real yarn and hook combinations.

Calculator Formula Validation

Our calculator formulas are derived from CYC-published gauge standards and validated through physical swatch testing. Each calculator has been tested against at least 20 real-world scenarios using different yarn weights (lace through jumbo), hook sizes (2.0 mm through 15.0 mm), and project types (scarves, blankets, garments). Results are compared against hand-calculated values and adjusted until accuracy consistently falls within 10-15% of real-world outcomes.

Corrections & Updates Policy

If we discover an error in any article or calculator, we correct it immediately and note the change with an updated modification date. We don't silently edit published content — significant corrections are transparently communicated. If you spot an error, please contact us and we'll investigate within 48 hours.

We review all published content on a quarterly basis to ensure it remains current with any changes to CYC standards, new yarn weight classifications, or updated industry best practices.

What We Don't Do

• We don't accept paid sponsorships or publish sponsored content.
• We don't include affiliate links or earn commissions on product recommendations.
• We don't publish content written by individuals without direct crochet experience.
• We don't make medical claims about crochet therapy or health benefits without citing peer-reviewed research.
• We don't guarantee calculator results — they are estimates based on user-provided inputs. See our Disclaimer.

Our Sources