Fit Formula — Crochet Garment Sizing System

The reason your cardigan came out wrong is almost never the pattern. This is the sizing maths most designers leave out, packaged so you can apply it to any garment pattern you already own.

What you get

• The 7 body measurements that matter, and how to take them alone
• Ease chart: how much extra to add for fitted, relaxed and oversized
• Grading formula for sizes XS–5XL — plug in your numbers, get your stitch counts
• Lengthening or shortening sleeves and body without breaking the stitch pattern
• Printable worksheet: one page per project, fill in and keep
• Blank schematic sheet for planning your own piece

Format & delivery

2 PDFs — the system (8 pages) and the printable worksheet (2 pages). Every file is a concise, no-filler PDF of 8 pages or fewer — designed to be printed and kept beside you while you work. Instant download link on the order confirmation page and by email. US crochet terms with a UK conversion chart on the last page. A4 and US Letter included.