CROCHET WITH EMMA • crochetwithemma.com

Crochet Yarn Weights Chart (#0–#7) & Foolproof Color Palette Guide

By Emma Collins • Original URL: https://crochetwithemma.com/yarn-weights-and-color-palettes-guide/

Decode Craft Yarn Council weights #0 to #7, wraps-per-inch (WPI) mystery yarn testing, and easy 4-color blanket palette formulas.

Skill Level: Beginner Reference

Hook Size: 2.25 mm – 15.0 mm Reference

Total Time: 10 mins

Yield: Printable Yarn Weight & Palette Cheat Sheet

Yarn Weight: Categories #0 Lace through #7 Jumbo

Gauge: Varies by CYC Category (#4 Worsted = 11–14 sc per 4")

Materials & Tools

#1 Fingering / Sock: 2.25–3.25 mm hook (shawls, lightweight garments)
#3 DK / Light Worsted: 3.75–4.5 mm hook (baby blankets, hexagon throws)
#4 Medium / Worsted / Aran: 5.0–5.5 mm hook (granny squares, amigurumi, afghans)
#5 Bulky & #6 Super Bulky: 6.5–10.0 mm hook (chunky hats, plushies, weekend throws)
12-inch ruler for Wraps Per Inch (WPI) check
Color wheel or phone camera grayscale filter

CYC – Craft Yarn Council | WPI – wraps per inch | DK – double knitting (#3 light)

Check Fiber Content First: Match fiber to function: 100% cotton for dishcloths/coasters/market bags, washable acrylic or superwash merino for baby blankets, and cozy wool blends for winter hats.
Verify Yardage When Substituting: Calculate total yards (skeins x yards per skein) rather than buying by skein count alone!
Crochet a 4x4 Gauge Swatch: Measure stitches and rows across the center 4 inches of a 6-inch swatch before starting wearables.

Print this card and tuck it inside your project bag for yarn-store shopping trips!