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Yarn by Weight

Shop Yarn by Weight: Find the Perfect Thickness for Any Project

Achieving the correct gauge starts with choosing the right yarn by weight. Whether you are following a pattern that calls for delicate lace or a trendy, oversized chunky knit, our collection makes it simple to filter over 1,000 options to find exactly what you need. From "Category 0" threads to "Category 7" jumbo roving, we carry all types of yarn weight to ensure your finished project has the perfect drape, warmth, and stitch definition. Use our weight filters below to explore your favorite fibers in the specific thickness your pattern requires.

Lace: > 8 sts or > 8 sc  = 1" | Fingering: 7–8 sts or 5.25–8 sc = 1" | Sport: 6–6.75 sts or 4–5 sc = 1" | DK: 5.25–6 sts or 3–4.25 sc = 1" | Worsted: 4–5 sts or 2.75–3.5 sc = 1" | Heavy Worsted/Aran: 4 sts or 2.75–3.5 sc = 1" | Bulky: 3–3.75 sts or 2–2.75 sc = 1" | Super Bulky: < 2.75 sts or 1.75–2.25 sc = 1"

Please note that Novelty yarns vary, so be sure to check the yarn specifications for your project. 

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SALE Plymouth Yarn Encore Worsted 147 options
Plymouth Yarn Encore Worsted

75% Acrylic 25% Wool, 199yds (182m)/100g (3.53oz), Worsted

$6.38
$8.50
Malabrigo Rios 121 options
Malabrigo Rios

100% Merino Wool, 210yds (192m)/100g (3.53oz), Worsted

$17.50
Cascade Yarns 220 111 options
Cascade Yarns 220

100% Wool, 219yds (200m)/100g (3.53oz), Worsted

$11.50
Cascade Yarns 220 Superwash Merino 122 options
Cascade Yarns 220 Superwash Merino

100% Merino Wool, 220yds (201m)/100g (3.53oz), DK | Light Worsted

$13.00
SALE Cascade Yarns 220 Superwash 199 options
Cascade Yarns 220 Superwash

100% Wool, 219yds (200m)/100g (3.53oz), DK | Light Worsted

$9.20 - $11.50
$11.50
Malabrigo Rasta 101 options
Malabrigo Rasta

100% Merino Wool, 90yds (82m)/150g (5.29oz), Super Bulky

$24.50
Rowan Felted Tweed 73 options
Rowan Felted Tweed

50% Wool 25% Alpaca 25% Viscose, 191yds (175m)/50g (1.76oz), DK | Light Worsted

$16.50
SALE Cascade Yarns Heritage 109 options
Cascade Yarns Heritage

75% Merino Wool 25% Nylon, 437yds (400m)/100g (3.53oz), Fingering

$8.63
$11.50
SALE Tahki Yarns Cotton Classic 76 options
Tahki Yarns Cotton Classic

100% Cotton, 107yds (98m)/50g (1.76oz), DK | Light Worsted

$5.24
$6.99
SALE Cascade Yarns Ultra Pima Fine 95 options
Cascade Yarns Ultra Pima Fine

100% Cotton, 137yds (125m)/50g (1.76oz), Sport

$5.80
$7.25
SALE Paintbox Yarns Cotton DK 81 options
Paintbox Yarns Cotton DK

100% Cotton, 137yds (125m)/50g (1.76oz), DK | Light Worsted

$2.63
$3.75
SALE Cascade Yarns Ultra Pima 109 options
Cascade Yarns Ultra Pima

100% Cotton, 219yds (200m)/100g (3.53oz), DK | Light Worsted

$10.80
$13.50
SALE Berroco Vintage 136 options
Berroco Vintage

52% Acrylic 40% Wool 8% Nylon, 218yds (199m)/100g (3.53oz), Worsted

$8.40
$10.50
SALE Valley Yarns Northampton 36 options
Valley Yarns Northampton

100% Wool, 247yds (226m)/100g (3.53oz), Worsted

$8.79
$10.99
SALE Valley Yarns Valley Superwash DK 33 options
Valley Yarns Valley Superwash DK

100% Merino Wool, 137yds (125m)/50g (1.76oz), DK | Light Worsted

$6.79
$8.49
SALE Cascade Yarns 220 Superwash Sport 88 options
Cascade Yarns 220 Superwash Sport

100% Merino Wool, 137yds (125m)/50g (1.76oz), Sport

$4.88
$6.50
SALE Lopi Léttlopi (Lite Lopi) 45 options
Lopi Léttlopi (Lite Lopi)

100% Wool, 109yds (100m)/50g (1.76oz), Worsted

$6.20
$7.75
SALE Valley Yarns Huntington 32 options
Valley Yarns Huntington

75% Merino Wool 25% Nylon, 218yds (199m)/50g (1.76oz), Fingering

$5.99
$7.49
SALE Valley Yarns Valley Superwash 37 options
Valley Yarns Valley Superwash

100% Merino Wool, 97yds (89m)/50g (1.76oz), Worsted

$6.79
$8.49
SALE Valley Yarns Southampton 50 options
Valley Yarns Southampton

72% Mohair 28% Silk, 230yds (210m)/25g (0.88oz), Lace | 2 Ply

$9.59
$11.99
Malabrigo Arroyo 90 options
Malabrigo Arroyo

100% Merino Wool, 335yds (306m)/100g (3.53oz), Sport

$21.90
SALE Cascade Yarns 220 Sport 116 options
Cascade Yarns 220 Sport

100% Wool, 164yds (150m)/50g (1.76oz), Sport

$4.80
$6.00
Malabrigo Mecha 87 options
Malabrigo Mecha

100% Merino Wool, 131yds (120m)/100g (3.53oz), Bulky

$16.50
Malabrigo Sock 88 options
Malabrigo Sock

100% Merino Wool, 440yds (402m)/100g (3.53oz), Light Fingering

$22.25
SALE Paintbox Yarns Cotton Aran 81 options
Paintbox Yarns Cotton Aran

100% Cotton, 93yds (85m)/50g (1.76oz), Aran

$2.63
$3.75
SALE Berroco Ultra Alpaca 94 options
Berroco Ultra Alpaca

50% Alpaca 50% Wool, 217yds (198m)/100g (3.53oz), Worsted

$12.00
$16.00
SALE Berroco Vintage Chunky 74 options
Berroco Vintage Chunky

52% Acrylic 40% Wool 8% Nylon, 136yds (124m)/100g (3.53oz), Bulky

$7.88
$10.50
Malabrigo Mechita 90 options
Malabrigo Mechita

100% Merino Wool, 420yds (384m)/100g (3.53oz), Fingering

$22.00
SALE Cascade Yarns 128 Superwash 100 options
Cascade Yarns 128 Superwash

100% Merino Wool, 128yds (117m)/100g (3.53oz), Bulky

$9.75
$13.00
SALE Debbie Bliss Baby Cashmerino 87 options
Debbie Bliss Baby Cashmerino

55% Merino Wool 33% Acrylic 12% Cashmere, 137yds (125m)/50g (1.76oz), Sport

$8.25
$11.00
SALE Cascade Yarns 220 Fingering 108 options
Cascade Yarns 220 Fingering

100% Wool, 273yds (250m)/50g (1.76oz), Fingering

$4.60
$5.75
SALE Plymouth Yarn Encore Chunky 49 options
Plymouth Yarn Encore Chunky

75% Acrylic 25% Wool, 142yds (130m)/100g (3.53oz), Bulky

$6.38
$8.50
Rowan Kidsilk Haze 107 options
Rowan Kidsilk Haze

70% Mohair 30% Silk, 230yds (210m)/25g (0.88oz), Lace | 2 Ply

$18.90
Plymouth Yarn Encore Worsted Colorspun 85 options
Plymouth Yarn Encore Worsted Colorspun

75% Acrylic 25% Wool, 199yds (182m)/100g (3.53oz), Worsted

$9.50
SALE Valley Yarns Haydenville 32 options
Valley Yarns Haydenville

60% Merino Wool 40% Acrylic, 220yds (201m)/100g (3.53oz), Worsted

$8.79
$10.99
SALE Valley Yarns Haydenville DK 31 options
Valley Yarns Haydenville DK

60% Merino Wool 40% Acrylic, 136yds (124m)/50g (1.76oz), DK | Light Worsted

$5.00
$6.25
SALE Blue Sky Fibers Organic Worsted Cotton 36 options
Blue Sky Fibers Organic Worsted Cotton

100% Cotton, 150yds (137m)/100g (3.53oz), Worsted

$13.35
$17.80
SALE Valley Yarns Berkshire Bulky 24 options
Valley Yarns Berkshire Bulky

85% Wool 15% Alpaca, 108yds (99m)/100g (3.53oz), Bulky

$8.39
$10.49
SALE Plymouth Yarn Select DK Merino Superwash 64 options
Plymouth Yarn Select DK Merino Superwash

100% Merino Wool, 129yds (118m)/50g (1.76oz), DK | Light Worsted

$6.74
$8.99
SALE Lopi Álafosslopi (Lopi) 49 options
Lopi Álafosslopi (Lopi)

100% Wool, 109yds (100m)/100g (3.53oz), Bulky

$10.80
$13.50
SALE Berroco Vintage DK 74 options
Berroco Vintage DK

52% Acrylic 40% Wool 8% Nylon, 288yds (263m)/100g (3.53oz), DK | Light Worsted

$7.88
$10.50
SALE Blue Sky Fibers Woolstok 50 28 options
Blue Sky Fibers Woolstok 50

100% Wool, 123yds (112m)/50g (1.76oz), Worsted

$7.88
$10.50
SALE Berroco Ultra Wool 96 options
Berroco Ultra Wool

100% Wool, 219yds (200m)/100g (3.53oz), Aran

$10.69
$14.25
Universal Yarn Bamboo Pop 72 options
Universal Yarn Bamboo Pop

50% Bamboo 50% Cotton, 291yds (266m)/100g (3.53oz), DK | Light Worsted

$11.00
Malabrigo Washted 41 options
Malabrigo Washted

100% Merino Wool, 210yds (192m)/100g (3.53oz), Worsted

$16.50
SALE Valley Yarns Charlemont 19 options
Valley Yarns Charlemont

60% Merino Wool 20% Silk 20% Polyamide, 439yds (401m)/100g (3.53oz), Fingering

$13.99
$17.49
SALE Valley Yarns Southwick 25 options
Valley Yarns Southwick

52% Cotton 48% Bamboo, 105yds (96m)/50g (1.76oz), DK | Light Worsted

$6.39
$7.99
SALE Valley Yarns Valley Superwash Sport 31 options
Valley Yarns Valley Superwash Sport

100% Merino Wool, 153yds (140m)/50g (1.76oz), Sport

$6.79
$8.49
SALE Valley Yarns Northfield 19 options
Valley Yarns Northfield

70% Merino Wool 20% Alpaca 10% Silk, 124yds (113m)/50g (1.76oz), DK | Light Worsted

$6.79
$8.49
SALE Valley Yarns Amherst 21 options
Valley Yarns Amherst

100% Merino Wool, 109yds (100m)/50g (1.76oz), Worsted

$5.40
$6.75
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Understanding Different Types of Yarn Weight

In the world of fiber arts, "weight" refers to the thickness of the yarn strand rather than the physical heaviness of the ball. Standardized yarn weights help crafters substitute fibers while maintaining the same scale. If your pattern calls for a specific weight and you aren’t sure where to start, here is a quick guide to the most common categories:

  • Lace & Fingering (Weights 0-1): These ultra-fine yarns are the best yarn for socks, lightweight shawls, and intricate lace edgings.
  • Sport & DK (Weights 2-3): Often called "lightweight" yarns, these are versatile favorites for baby clothes, spring cardigans, and stranded colorwork.
  • Worsted & Aran (Weight 4): This is the most popular yarn weight, prized for its balance of speed and stitch definition—ideal for sweaters, blankets, and hats.
  • Bulky & Super Bulky (Weights 5-6): Perfect for quick-knit gifts, these thick fibers create warm, cozy textures that work up in a flash on large needles or hooks.

Why Does Yarn Weight Matter?

Selecting the correct weight isn't just about the look; it’s about achieving gauge. If the yarn is too thin, your sweater will be too small; if it’s too thick, your project will be stiff and oversized. By matching your yarn weight to the designer's recommendation, you ensure the drape, durability, and size are exactly where they need to be.

Expert Tip: Always check your ball band! Most manufacturers list the Craft Yarn Council (CYC) number (0–7) right on the label to help you identify the weight at a glance.

How to Verify Your Yarn Weight: WPI and Gauge

If you have a mystery skein in your stash, you can determine its weight by measuring Wraps Per Inch (WPI). By wrapping the yarn snugly around a ruler, you can count how many times it fits into an inch to identify its category. We’ve also included the typical knitting gauge below to help you cross-reference your results and ensure your chosen pattern will have the perfect drape and fit.

Lace Weight: 18+ WPI, 32–40+ sts / 4"

Fingering Weight: 14–18 WPI, 27–32 sts / 4"

Sport Weight: 12–14 WPI, 23–26 sts / 4"

DK Weight: 11–13 WPI, 21–24 sts / 4"

Worsted Weight: 9–11 WPI, 16–20 sts / 4"

Heavy Worsted / Aran: 8–9 WPI, 16–18 sts / 4"

Bulky Weight: 6–8 WPI, 12–15 sts / 4"

Super Bulky: 5–6 WPI, 6–11 sts / 4"

Why Buy Yarn by Weight at WEBS?

When you shop for yarn by weight at WEBS, you aren't just getting variety—you're getting expertise. We categorize our yarns according to the Craft Yarn Council standards to take the guesswork out of your shopping experience. This ensures you can easily find the perfect match for your project, whether you're searching for a delicate lace or a cozy super bulky, with the confidence that every skein will meet your specific gauge and texture needs.