Fit & Yarn Guides
Crochet Hook Sizes: Full mm to US to UK Conversion Chart
August 24, 2026 · 4 min read

Every hook size in millimetres, US letters and old UK numbers — plus which hook actually belongs with which yarn.
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Practical crochet reference charts for garment sizing, hook sizes, yarn weights and project planning.
Fit & Yarn Guides
August 24, 2026 · 4 min read

Every hook size in millimetres, US letters and old UK numbers — plus which hook actually belongs with which yarn.
Read more →Fit & Yarn Guides
August 23, 2026 · 3 min read

What lace, DK, worsted and bulky actually mean, the gauge each should give, and how to swap one yarn for another without ruining the project.
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August 22, 2026 · 4 min read

A quick estimate by size and yarn weight, then a swatch method based on your own yarn and tension.
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August 21, 2026 · 3 min read

Standard finished measurements in inches and centimetres, and the two adjustments almost every maker needs.
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