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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Blue Sky Fibers Brushed Suri Yarn - Alpaca DK 15 options
Blue Sky Fibers Brushed Suri Yarn - Alpaca DK

67% Alpaca 22% Merino Wool 11% Bamboo, 141yds (129m)/50g (1.76oz), DK | Light Worsted

$19.60
SALE Rowan Cotton Revive Yarn 10 options
Rowan Cotton Revive Yarn

80% Cotton 20% Other, 273yds (250m)/100g (3.53oz), Sport

$5.25
$10.50
Koigu Chelsea Merino Yarn - Merino Wool Aran 25 options
Koigu Chelsea Merino Yarn - Merino Wool Aran

100% Merino Wool, 125yds (114m)/100g (3.53oz), Aran

$29.00
Berroco Lumi Yarn - Cotton DK 19 options
Berroco Lumi Yarn - Cotton DK

80% Cotton 18% Polyester 2% Other, 137yds (125m)/50g (1.76oz), DK | Light Worsted

$11.00
SALE Yarn Vibes Cliff of Moher Yarn - Wool Worsted 14 options
Yarn Vibes Cliff of Moher Yarn - Wool Worsted

60% Wool 40% Virgin Wool, 164yds (150m)/100g (3.53oz), Worsted

$9.79
$13.99
Blue Sky Fibers Woolstok North Yarn - Wool Super Chunky 12 options
Blue Sky Fibers Woolstok North Yarn - Wool Super Chunky

100% Wool, 159g (5.61oz), Super Bulky

$24.00
Berroco Merino 401 Yarn - Merino Wool Worsted 37 options
Berroco Merino 401 Yarn - Merino Wool Worsted

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

$10.00
Debbie Bliss Aymara Yarn - Baby Alpaca DK 19 options
Debbie Bliss Aymara Yarn - Baby Alpaca DK

100% Baby Alpaca, 109yds (100m)/50g (1.76oz), DK | Light Worsted

$12.50
SALE Stacy Charles Fine Yarns Jewel Yarn - Merino Wool DK 6 options
Stacy Charles Fine Yarns Jewel Yarn - Merino Wool DK

89% Merino Wool 6% Polyamide 5% Metallic, 218yds (199m)/50g (1.76oz), DK | Light Worsted

$11.20
$16.00
Queensland Collection Kathmandu DK 100 Yarn - Merino Wool DK 14 options
Queensland Collection Kathmandu DK 100 Yarn - Merino Wool DK

85% Merino Wool 10% Silk 5% Cashmere, 295yds (270m)/100g (3.53oz), DK | Light Worsted

$27.95
Universal Yarn Uptown Bamboo DK Yarn - Acrylic DK 38 options
Universal Yarn Uptown Bamboo DK Yarn - Acrylic DK

80% Acrylic 20% Bamboo, 284yds (260m)/100g (3.53oz), DK | Light Worsted

$7.50
Debbie Bliss Super Chunky Merino Yarn - Merino Wool Super Chunky 15 options
Debbie Bliss Super Chunky Merino Yarn - Merino Wool Super Chunky

100% Merino Wool, 87yds (80m)/100g (3.53oz), Super Bulky

$19.50
SALE Rowan Four Seasons Yarn - Cotton Worsted 9 options
Rowan Four Seasons Yarn - Cotton Worsted

60% Cotton 40% Acrylic, 82yds (75m)/50g (1.76oz), Worsted

$3.48
$6.95
SALE Berroco Splash Yarn - Viscose DK 14 options
Berroco Splash Yarn - Viscose DK

70% Viscose 30% Cotton, 131yds (120m)/50g (1.76oz), DK | Light Worsted

$5.50
$11.00
SALE Lion Brand 24/7 Cotton Yarn 43 options
Lion Brand 24/7 Cotton Yarn

100% Cotton, 186yds (170m)/100g (3.53oz), Worsted

$4.49
$5.99
Sirdar Snuggly Cashmere Merino Yarn - Wool DK 24 options
Sirdar Snuggly Cashmere Merino Yarn - Wool DK

57% Wool 33% Acrylic 10% Cashmere, 142yds (130m)/50g (1.76oz), DK | Light Worsted

$14.25
Koigu Jasmine Yarn - Merino Wool DK 24 options
Koigu Jasmine Yarn - Merino Wool DK

100% Merino Wool, 242yds (221m)/100g (3.53oz), DK | Light Worsted

$33.00
SALE The Yarn Collective Bloomsbury DK Yarn - Merino Wool DK 12 options
The Yarn Collective Bloomsbury DK Yarn - Merino Wool DK

100% Merino Wool, 263yds (240m)/100g (3.53oz), DK | Light Worsted

$18.75
$25.00
SALE Berroco Ultra Alpaca Chunky Natural Yarn - Alpaca Chunky 7 options
Berroco Ultra Alpaca Chunky Natural Yarn - Alpaca Chunky

50% Alpaca 50% Wool, 131yds (120m)/100g (3.53oz), Bulky

$12.38
$16.50
Debbie Bliss British Wool Aran Yarn - Wool Aran 14 options
Debbie Bliss British Wool Aran Yarn - Wool Aran

100% Wool, 98yds (90m)/50g (1.76oz), Aran

$12.00
Debbie Bliss Nell Yarn - Mohair Chunky 12 options
Debbie Bliss Nell Yarn - Mohair Chunky

78% Mohair 13% Merino Wool 9% Polyamide, 109yds (100m)/50g (1.76oz), Bulky

$14.00
SALE Plymouth Yarn Cielo Yarn - Merino Wool Super Chunky 10 options
Plymouth Yarn Cielo Yarn - Merino Wool Super Chunky

80% Merino Wool 20% Nylon, 109yds (100m)/100g (3.53oz), Super Bulky

$8.75
$17.49
SALE West Yorkshire Spinners Signature 4 Ply Yarn - Wool 4 Ply 78 options
West Yorkshire Spinners Signature 4 Ply Yarn - Wool 4 Ply

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

$14.63
$19.50
SALE Adriafil Stellato Yarn - Viscose Worsted 8 options
Adriafil Stellato Yarn - Viscose Worsted

50% Viscose 23% Wool 23% Polyamide 4% Polyester, 114yds (104m)/50g (1.76oz), Worsted

$5.50
$10.99
Fibra Natura Cobblestone Yarn - Merino Wool DK 16 options
Fibra Natura Cobblestone Yarn - Merino Wool DK

100% Merino Wool, 612yds (560m)/200g (7.06oz), DK | Light Worsted

$29.00
Noro Haunui Silk Yarn - Wool Worsted 12 options
Noro Haunui Silk Yarn - Wool Worsted

65% Wool 35% Silk, 361yds (330m)/150g (5.29oz), Worsted

$46.95
Adriafil Calzasocks Solids Yarn - Superwash Wool 4 Ply 10 options
Adriafil Calzasocks Solids Yarn - Superwash Wool 4 Ply

75% Wool 25% Nylon, 459yds (420m)/100g (3.53oz), Fingering

$16.99
Stylecraft Special Chunky Yarn - Acrylic Chunky 50 options
Stylecraft Special Chunky Yarn - Acrylic Chunky

100% Acrylic, 157yds (144m)/100g (3.53oz), Bulky

$3.59
SALE Trendsetter Yarns Stride Yarn - Wool Aran 7 options
Trendsetter Yarns Stride Yarn - Wool Aran

85% Wool 15% Acrylic, 175yds (160m)/100g (3.53oz), Aran

$12.00
$24.00
SALE Valley Yarns Berkshire 100 Gram Hank Yarn - Wool Worsted
Valley Yarns Berkshire 100 Gram Hank Yarn - Wool Worsted

85% Wool 15% Alpaca, 140yds (128m)/100g (3.53oz), Worsted

$6.37
$8.49
King Cole Merino Blend DK Yarn - Superwash Wool DK 96 options
King Cole Merino Blend DK Yarn - Superwash Wool DK

100% Wool, 114yds (104m)/50g (1.76oz), DK | Light Worsted

$7.90
SALE Jody Long Andeamo Yarn - Wool Super Chunky 17 options
Jody Long Andeamo Yarn - Wool Super Chunky

85% Wool 15% Alpaca, 175yds (160m)/200g (7.06oz), Super Bulky

$18.87
$26.95
SALE Cascade Yarns Woolpaka Lite Yarn - DK 30 options
Cascade Yarns Woolpaka Lite Yarn - DK

60% Peruvian Highland Wool 40% Alpaca, 292yds (267m)/100g (3.53oz), DK | Light Worsted

$12.00
$16.00
Lion Brand Wool Ease Yarn - Acrylic Worsted 51 options
Lion Brand Wool Ease Yarn - Acrylic Worsted

80% Acrylic 20% Wool, 197yds (180m)/85g (3oz), Worsted

$5.99
Noro Sonata Yarn - Cotton Sport 20 options
Noro Sonata Yarn - Cotton Sport

35% Cotton 25% Viscose 20% Silk 20% Polyamide, 393yds (359m)/100g (3.53oz), Sport

$26.95
Plymouth Yarn Hearty Homestead Yarn - Wool Super Chunky 7 options
Plymouth Yarn Hearty Homestead Yarn - Wool Super Chunky

100% Wool, 123yds (112m)/100g (3.53oz), Super Bulky

$11.99
SALE Lion Brand Hue & Me Yarn - Acrylic Chunky 37 options
Lion Brand Hue & Me Yarn - Acrylic Chunky

80% Acrylic 20% Wool, 137yds (125m)/125g (4.41oz), Bulky

$5.62
$7.49
Debbie Bliss Fine Donegal 50g Yarn - Wool 4 Ply 12 options
Debbie Bliss Fine Donegal 50g Yarn - Wool 4 Ply

95% Wool 5% Cashmere, 208yds (190m)/50g (1.76oz), Fingering

$14.00
SALE Noro Saiun Yarn - Wool DK 15 options
Noro Saiun Yarn - Wool DK

70% Wool 30% Polyester, 492yds (450m)/150g (5.29oz), DK | Light Worsted

$27.71
$36.95
SALE Sirdar Jewelspun With Wool Chunky Yarn - Acrylic Chunky 11 options
Sirdar Jewelspun With Wool Chunky Yarn - Acrylic Chunky

80% Acrylic 20% Wool, 328yds (300m)/200g (7.06oz), Bulky

$14.81
$19.75
SALE Stylecraft Naturals Bamboo & Cotton DK Yarn - Bamboo DK 52 options
Stylecraft Naturals Bamboo & Cotton DK Yarn - Bamboo DK

60% Bamboo 40% Cotton, 273yds (250m)/100g (3.53oz), DK | Light Worsted

$8.63
$11.50
Noro Haunui Yarn - Wool Worsted 19 options
Noro Haunui Yarn - Wool Worsted

100% Wool, 437yds (400m)/200g (7.06oz), Worsted

$41.95
Stylecraft Special Aran Yarn - Acrylic Aran 50 options
Stylecraft Special Aran Yarn - Acrylic Aran

100% Acrylic, 214yds (196m)/100g (3.53oz), Aran

$4.79
Koigu KPPPM Painter's Fade Palette Pack Yarn - Merino Wool 4 Ply 7 options
Koigu KPPPM Painter's Fade Palette Pack Yarn - Merino Wool 4 Ply

100% Merino Wool, 1575yds (1440m)/450g (15.87oz), Fingering

$148.50
Plymouth Yarn Viento 100 Yarn - Baby Alpaca Chunky 10 options
Plymouth Yarn Viento 100 Yarn - Baby Alpaca Chunky

70% Baby Alpaca 30% Bamboo, 196yds (179m)/100g (3.53oz), Bulky

$23.99
Berroco Bozzolo Yarn - Cotton 12 options
Berroco Bozzolo Yarn - Cotton

100% Cotton, 240yds (219m)/100g (3.53oz), Aran

$17.99
SALE Valley Yarns Savoy Yarn - Wool DK 9 options
Valley Yarns Savoy Yarn - Wool DK

30% Wool 5% Cashmere 35% Viscose 30% Polyamide, 137yds (125m)/50g (1.76oz), DK | Light Worsted

$8.39
$11.99
Rowan Fine Tweed Haze Yarn - Alpaca 4 Ply 16 options
Rowan Fine Tweed Haze Yarn - Alpaca 4 Ply

37% Alpaca 37% Wool 13% Polyamide 9% Cotton 4% Polyester, 235yds (215m)/50g (1.76oz), Fingering

$21.50
Noro Sonata Shima Yarn - Cotton DK 17 options
Noro Sonata Shima Yarn - Cotton DK

35% Cotton 25% Viscose 20% Silk 20% Polyamide, 393yds (359m)/100g (3.53oz), DK | Light Worsted

$25.95
SALE Berroco Seaspun Yarn - Cotton 11 options
Berroco Seaspun Yarn - Cotton

50% Cotton 50% Polyester, 120yds (110m)/50g (1.76oz), Worsted

$5.50
$10.99
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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.

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