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Learn

Yarn weight guide

What all those words on yarn labels mean, and which needles and hooks go with each weight. Based on the Craft Yarn Council standard.

#WeightAlso calledKnitting needlesCrochet hookStitches per 4 in
0LaceLace, Light Fingering, 10-count threadUS 000–1 (1.5–2.25 mm)Steel 6–8, B-1 (1.4–2.25 mm)33–40 stsShop
1FingeringSuper Fine, Sock, BabyUS 1–3 (2.25–3.25 mm)B-1 to E-4 (2.25–3.5 mm)27–32 stsShop
2SportFine, BabyUS 3–5 (3.25–3.75 mm)E-4 to 7 (3.5–4.5 mm)23–26 stsShop
3DKLight, Light WorstedUS 5–7 (3.75–4.5 mm)7 to I-9 (4.5–5.5 mm)21–24 stsShop
4WorstedMedium, Aran, AfghanUS 7–9 (4.5–5.5 mm)I-9 to K-10½ (5.5–6.5 mm)16–20 stsShop
5BulkyChunky, Craft, RugUS 9–11 (5.5–8 mm)K-10½ to M-13 (6.5–9 mm)12–15 stsShop
6Super BulkySuper Chunky, RovingUS 11–17 (8–12.75 mm)M-13 to Q (9–15 mm)7–11 stsShop
7JumboJumbo, RovingUS 17 and larger (12.75 mm+)Q and larger (15 mm+)6 sts and fewerShop

Words to know

A little glossary

Aida
An evenly woven cotton fabric with clear holes, made for cross-stitch. The "count" is how many squares per inch.
Colorway
The name for one color or color mix of a yarn, especially hand-dyed yarn.
DK
Short for "double knit": a light yarn weight between sport and worsted.
Dye lot
A batch of yarn dyed together. Skeins from different lots can differ slightly.
Evenweave
A cross-stitch and embroidery fabric with the same number of threads each way, usually stitched over two threads.
Floss
Embroidery thread, usually six strands loosely twisted together so you can separate them.
Gauge
How many stitches and rows fit in 4 inches (10 cm). Matching it keeps a finished piece the right size.
Hank / skein
A loop of yarn twisted for sale. A hank needs winding into a ball before you use it.
k2tog
Knit two together: a basic decrease in knitting patterns.
Ply
The number of strands twisted together to make a yarn.
Roving
Cleaned, combed fiber ready for spinning or felting.
Sett
In weaving, how many warp threads per inch.
Superwash
Wool treated so it can go in the washing machine without felting.
WPI
Wraps per inch: a way to measure a mystery yarn's weight by wrapping it around a ruler.
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