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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.  See the full yarn weight chart with ply conversions. 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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Sirdar Snuggly 100% Cotton Yarn - Cotton DK 2 options
Sirdar Snuggly 100% Cotton Yarn - Cotton DK

100% Cotton, 116yds (106m)/50g (1.76oz), DK | Light Worsted

$5.00
SALE Paintbox Yarns Baby DK Prints Yarn - Nylon DK 19 options
Paintbox Yarns Baby DK Prints Yarn - Nylon DK

55% Nylon 45% Acrylic, 183yds (167m)/50g (1.76oz), DK | Light Worsted

$3.58
$5.50
Rowan Tweed Haze Yarn - Mohair Chunky 5 options
Rowan Tweed Haze Yarn - Mohair Chunky

40% Mohair 39% Alpaca 10% Polyester 8% Cotton 3% Polyamide, 131yds (120m)/50g (1.76oz), Bulky

$22.00
SALE Paintbox Yarns Wool Blend Super Chunky Yarn - Acrylic Super Chunky 20 options
Paintbox Yarns Wool Blend Super Chunky Yarn - Acrylic Super Chunky

75% Acrylic 25% Wool, 66yds (60m)/100g (3.53oz), Super Bulky

$4.39
$6.75
Koigu Painter's Palette 25th Anniversary Pack Yarn - Merino Wool 4 Ply 2 options
Koigu Painter's Palette 25th Anniversary Pack Yarn - Merino Wool 4 Ply

100% Merino Wool, 1050yds (960m)/300g (10.58oz), Fingering

$96.00
Valley Yarns Huntington 100 Gram Hanks Yarn - Merino Wool 4 Ply
Valley Yarns Huntington 100 Gram Hanks Yarn - Merino Wool 4 Ply

75% Merino Wool 25% Nylon, 436yds (399m)/100g (3.53oz), Fingering

$11.99
Sesia Flora Paillettes Yarn - Cotton Fingering 7 options
Sesia Flora Paillettes Yarn - Cotton Fingering

95% Cotton 5% Polyester, 114yds (104m)/25g (0.88oz), Fingering

$14.00
Plymouth Yarn Aireado Yarn - Baby Alpaca Chunky 7 options
Plymouth Yarn Aireado Yarn - Baby Alpaca Chunky

70% Baby Alpaca 23% Nylon 7% Wool, 283yds (259m)/100g (3.53oz), Bulky

$26.99
Berroco Millstone Tweed Yarn - Wool Aran 38 options
Berroco Millstone Tweed Yarn - Wool Aran

60% Wool 20% Polyamide 20% Viscose, 97yds (89m)/50g (1.76oz), Aran

$11.50
SALE Rowan Cotton Revive Yarn 10 options
Rowan Cotton Revive Yarn

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

$5.25 - $7.88
$10.50
Koigu Paint Cans Yarn - Merino Wool 4 Ply 9 options
Koigu Paint Cans Yarn - Merino Wool 4 Ply

100% Merino Wool, 435yds (398m)/125g (4.41oz), Fingering

$40.00
Valley Yarns Berkshire Bulky 100 Gram Hanks Yarn - Wool Chunky
Valley Yarns Berkshire Bulky 100 Gram Hanks Yarn - Wool Chunky

85% Wool 15% Alpaca, 92yds (84m)/100g (3.53oz), Bulky

$8.49
Lion Brand 24/7 Cotton Yarn 43 options
Lion Brand 24/7 Cotton Yarn

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

$5.99
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
Koigu Chelsea Merino Yarn - Merino Wool Aran 9 options
Koigu Chelsea Merino Yarn - Merino Wool Aran

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

$34.00
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
SALE Yarn Vibes Cliff of Moher Yarn - Wool Worsted 4 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 9 options
Blue Sky Fibers Woolstok North Yarn - Wool Super Chunky

100% Wool, 107yds (98m)/159g (5.61oz), Super Bulky

$25.20
SALE 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

$8.75
$12.50
SALE Stacy Charles Fine Yarns Jewel Yarn - Merino Wool DK 4 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 7 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
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 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

$13.65
$19.50
Universal Yarn Uptown Bamboo DK Yarn - Acrylic DK 9 options
Universal Yarn Uptown Bamboo DK Yarn - Acrylic DK

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

$7.50
Cascade Yarns 220 Superwash Hand Paint Yarn - Wool DK 6 options
Cascade Yarns 220 Superwash Hand Paint Yarn - Wool DK

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

$14.50
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
Sirdar Snuggly Cashmere Merino Yarn - Wool DK 5 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 14 options
Koigu Jasmine Yarn - Merino Wool DK

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

$36.00
Berroco Ultra Alpaca Chunky Natural Yarn - Alpaca Chunky 4 options
Berroco Ultra Alpaca Chunky Natural Yarn - Alpaca Chunky

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

$16.50
SALE 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

$8.40
$12.00
Cascade Yarns Merino DK Yarn - Merino Wool DK 8 options
Cascade Yarns Merino DK Yarn - Merino Wool DK

100% Merino Wool, 254yds (232m)/100g (3.53oz), DK | Light Worsted

$12.50
West Yorkshire Spinners Signature 4 Ply Yarn - Wool 4 Ply 19 options
West Yorkshire Spinners Signature 4 Ply Yarn - Wool 4 Ply

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

$19.50
SALE 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

$9.80
$14.00
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 4 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 7 options
Noro Haunui Silk Yarn - Wool Worsted

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

$46.95
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

$14.40 - $24.00
$24.00
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
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

$5.99
$7.49
Stylecraft Special Chunky Yarn - Acrylic Chunky 49 options
Stylecraft Special Chunky Yarn - Acrylic Chunky

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

$3.59
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

$16.00
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

$8.49
King Cole Merino Blend DK Yarn - Superwash Wool DK 51 options
King Cole Merino Blend DK Yarn - Superwash Wool DK

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

$7.90
Lion Brand Wool Ease Yarn - Acrylic Worsted 30 options
Lion Brand Wool Ease Yarn - Acrylic Worsted

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

$5.99
SALE Jody Long Andeamo Yarn - Wool Super Chunky 4 options
Jody Long Andeamo Yarn - Wool Super Chunky

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

$18.87
$26.95
Noro Sonata Yarn - Cotton Sport 13 options
Noro Sonata Yarn - Cotton Sport

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

$26.95
Cascade Yarns Pacific Chunky Effects Yarn - Acrylic Chunky
Cascade Yarns Pacific Chunky Effects Yarn - Acrylic Chunky

60% Acrylic 40% Merino Wool, 120yds (110m)/100g (3.53oz), Bulky

$9.00
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

$19.75
Plymouth Yarn Hearty Homestead Yarn - Wool Super Chunky 2 options
Plymouth Yarn Hearty Homestead Yarn - Wool Super Chunky

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

$11.99
SALE Stylecraft Naturals Bamboo & Cotton DK Yarn - Bamboo DK 50 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
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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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