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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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SALE Berroco Millefiori Light Yarn - Wool Sport 5 options
Berroco Millefiori Light Yarn - Wool Sport

50% Wool 50% Acrylic, 350yds (320m)/100g (3.53oz), Sport

$8.50 - $17.00
$17.00
Cascade Yarns Woolpaka Yarn - Wool Worsted 17 options
Cascade Yarns Woolpaka Yarn - Wool Worsted

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

$15.70
SALE Paintbox Yarns Wool Blend DK Yarn - Acrylic DK 30 options
Paintbox Yarns Wool Blend DK Yarn - Acrylic DK

75% Acrylic 25% Wool, 284yds (260m)/100g (3.53oz), DK | Light Worsted

$4.39
$6.75
SALE Tahki Yarns Reno Yarn - Merino Wool DK 4 options
Tahki Yarns Reno Yarn - Merino Wool DK

45% Merino Wool 37% Bamboo 10% Yak 8% Polyamide, 110yds (101m)/50g (1.76oz), DK | Light Worsted

$8.44
$12.99
Cascade Yarns Cotton Sox Yarn - Cotton Sport 16 options
Cascade Yarns Cotton Sox Yarn - Cotton Sport

89% Cotton 11% Nylon, 433yds (396m)/100g (3.53oz), Sport

$11.00
MillaMia Naturally Soft Aran Yarn - Merino Wool Aran 39 options
MillaMia Naturally Soft Aran Yarn - Merino Wool Aran

100% Merino Wool, 87yds (80m)/50g (1.76oz), Aran

$11.00
Juniper Moon Farm Herriot Yarn - Baby Alpaca DK 11 options
Juniper Moon Farm Herriot Yarn - Baby Alpaca DK

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

$25.95
Cascade Yarns 220 Superwash Aran Wave Yarn 21 options
Cascade Yarns 220 Superwash Aran Wave Yarn

100% Wool, 150yds (137m)/100g (3.53oz), Aran

$14.90
Elsebeth Lavold Silky Wool Aran Yarn - Wool Worsted 6 options
Elsebeth Lavold Silky Wool Aran Yarn - Wool Worsted

45% Wool 35% Silk 20% Nylon, 104yds (95m)/50g (1.76oz), Worsted

$11.95
Blue Sky Fibers Skyland Yarn - Wool DK 8 options
Blue Sky Fibers Skyland Yarn - Wool DK

40% Wool 30% Alpaca 30% Silk, 210yds (192m)/100g (3.53oz), DK | Light Worsted

$31.60
SALE Tahki Yarns Osprey Yarn - Cotton DK 2 options
Tahki Yarns Osprey Yarn - Cotton DK

87% Cotton 13% Polyamide, 148yds (135m)/50g (1.76oz), DK | Light Worsted

$7.14
$10.99
Noro Madara Yarn - Wool Worsted 21 options
Noro Madara Yarn - Wool Worsted

60% Wool 10% Alpaca 30% Silk, 219yds (200m)/100g (3.53oz), Worsted

$28.50
SALE Berroco Pima Soft Yarn - Cotton DK 4 options
Berroco Pima Soft Yarn - Cotton DK

100% Cotton, 124yds (113m)/50g (1.76oz), DK | Light Worsted

$6.55
$9.35
SALE Debbie Bliss Piper Yarn - Cotton DK 20 options
Debbie Bliss Piper Yarn - Cotton DK

50% Cotton 50% Viscose, 219yds (200m)/100g (3.53oz), DK | Light Worsted

$7.35
$10.50
Malabrigo Metamorphosis Sock Merino 4 Ply Yarn - Superwash Merino 4 Ply 9 options
Malabrigo Metamorphosis Sock Merino 4 Ply Yarn - Superwash Merino 4 Ply

100% Merino Wool, 400yds (366m)/100g (3.53oz), Fingering

$24.00
Cascade Yarns Botanika Yarn - Cotton Sport 16 options
Cascade Yarns Botanika Yarn - Cotton Sport

100% Cotton, 328yds (300m)/100g (3.53oz), Sport

$12.50
SALE Willow & Lark Ramble Yarn - Wool DK 37 options
Willow & Lark Ramble Yarn - Wool DK

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

$5.60
$8.00
Blue Sky Fibers Suri Merino Worsted Yarn - Baby Alpaca DK 7 options
Blue Sky Fibers Suri Merino Worsted Yarn - Baby Alpaca DK

60% Baby Alpaca 40% Merino Wool, 164yds (150m)/100g (3.53oz), DK | Light Worsted

$27.40
Cascade Yarns Pandamonium Yarn - Cotton DK 11 options
Cascade Yarns Pandamonium Yarn - Cotton DK

55% Cotton 45% Viscose, 273yds (250m)/100g (3.53oz), DK | Light Worsted

$8.50
SALE Debbie Bliss Rialto 4 Ply Yarn - Merino Wool 4 Ply 43 options
Debbie Bliss Rialto 4 Ply Yarn - Merino Wool 4 Ply

100% Merino Wool, 197yds (180m)/50g (1.76oz), Fingering

$7.70
$11.00
SALE Plymouth Yarn Encore Chunky Colorspun Yarn - Acrylic Chunky 3 options
Plymouth Yarn Encore Chunky Colorspun Yarn - Acrylic Chunky

75% Acrylic 25% Wool, 143yds (131m)/100g (3.53oz), Bulky

$6.39
$7.99
Willow & Lark Poetry Yarn - Merino Wool DK 19 options
Willow & Lark Poetry Yarn - Merino Wool DK

60% Merino Wool 30% Microfibre 10% Camel, 126yds (115m)/50g (1.76oz), DK | Light Worsted

$8.00
Berroco Aerial Color Yarn - Mohair Lace 10 options
Berroco Aerial Color Yarn - Mohair Lace

65% Mohair 35% Silk, 284yds (260m)/25g (0.88oz), Lace | 2 Ply

$16.00
Queensland Collection Coastal Cotton Yarn - Cotton Worsted 29 options
Queensland Collection Coastal Cotton Yarn - Cotton Worsted

100% Cotton, 185yds (169m)/100g (3.53oz), Worsted

$7.95
SALE Debbie Bliss Merion Yarn - Wool Chunky 6 options
Debbie Bliss Merion Yarn - Wool Chunky

50% Wool 50% Acrylic, 109yds (100m)/100g (3.53oz), Bulky

$7.48
$11.50
Berroco Wizard Yarn - Superwash Merino Chunky 7 options
Berroco Wizard Yarn - Superwash Merino Chunky

85% Merino Wool 15% Nylon, 262yds (240m)/100g (3.53oz), Bulky

$25.00
Cascade Yarns Eco Duo Yarn - Baby Alpaca Aran 6 options
Cascade Yarns Eco Duo Yarn - Baby Alpaca Aran

70% Baby Alpaca 30% Merino Wool, 197yds (180m)/100g (3.53oz), Aran

$19.00
Berroco Spree Yarn - Wool DK 18 options
Berroco Spree Yarn - Wool DK

56% Wool 44% Cotton, 142yds (130m)/50g (1.76oz), DK | Light Worsted

$12.00
SALE Debbie Bliss Rialto Aran Yarn - Merino Wool Aran 7 options
Debbie Bliss Rialto Aran Yarn - Merino Wool Aran

100% Merino Wool, 85yds (78m)/50g (1.76oz), Aran

$7.15
$11.00
SALE Debbie Bliss Angel Yarn - Mohair Lace 53 options
Debbie Bliss Angel Yarn - Mohair Lace

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

$11.03
$15.75
SALE Paintbox Yarns Baby DK Yarn - Nylon DK 25 options
Paintbox Yarns Baby DK Yarn - Nylon DK

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

$3.25
$5.00
Manos del Uruguay Milo Yarn - Merino Wool DK
Manos del Uruguay Milo Yarn - Merino Wool DK

65% Merino Wool 35% Linen, 380yds (347m)/100g (3.53oz), DK | Light Worsted

$34.00
Juniper Moon Farm Herriot Great Yarn - Baby Alpaca Chunky 8 options
Juniper Moon Farm Herriot Great Yarn - Baby Alpaca Chunky

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

$23.95 - $25.95
SALE Debbie Bliss Dulcie Yarn - Cotton Chunky 3 options
Debbie Bliss Dulcie Yarn - Cotton Chunky

47% Cotton 47% Acrylic 6% Nylon, 82yds (75m)/50g (1.76oz), Bulky

$5.60
$8.00
SALE Malabrigo Seis Cabos Yarn - Merino DK 28 options
Malabrigo Seis Cabos Yarn - Merino DK

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

$14.08
$17.60
Juniper Moon Farm Summer Solstice Yarn - Linen Sport 11 options
Juniper Moon Farm Summer Solstice Yarn - Linen Sport

48% Linen 24% Cotton 24% Viscose 4% Polyester, 295yds (270m)/100g (3.53oz), Sport

$21.50
Valley Yarns Valley Superwash 100 Gram Hanks Yarn
Valley Yarns Valley Superwash 100 Gram Hanks Yarn

100% Merino Wool, 194yds (177m)/100g (3.53oz), Worsted

$12.49
SALE Debbie Bliss Saphia Yarn - Baby Alpaca Chunky 5 options
Debbie Bliss Saphia Yarn - Baby Alpaca Chunky

43% Baby Alpaca 42% Merino Wool 15% Linen, 109yds (100m)/100g (3.53oz), Bulky

$11.55
$16.50
Cascade Yarns 220 Grande Yarn - Wool Chunky 7 options
Cascade Yarns 220 Grande Yarn - Wool Chunky

100% Wool, 220yds (201m)/200g (7.06oz), Bulky

$23.25
Plymouth Yarn Highland Wool Souffle Yarn - Wool Super Chunky 8 options
Plymouth Yarn Highland Wool Souffle Yarn - Wool Super Chunky

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

$15.99
Koigu Othello Merino Yarn - Merino Wool Chunky 9 options
Koigu Othello Merino Yarn - Merino Wool Chunky

100% Merino Wool, 95yds (87m)/100g (3.53oz), Bulky

$34.00
Trendsetter Yarns Blink Yarn - Cotton Worsted 13 options
Trendsetter Yarns Blink Yarn - Cotton Worsted

90% Cotton 10% Polyamide, 110yds (101m)/50g (1.76oz), Worsted

$12.00
Queensland Collection Kathmandu Aran 100 Yarn - Merino Wool Worsted 9 options
Queensland Collection Kathmandu Aran 100 Yarn - Merino Wool Worsted

85% Merino Wool 10% Silk 5% Cashmere, 208yds (190m)/100g (3.53oz), Worsted

$27.95
SALE Cascade Yarns Cherub Sock Yarn - Nylon 4 Ply 16 options
Cascade Yarns Cherub Sock Yarn - Nylon 4 Ply

55% Nylon 45% Acrylic, 458yds (419m)/100g (3.53oz), Fingering

$4.25 - $5.10
$8.50
Berroco Vintage Baby Handpaint Yarn - Acrylic DK 9 options
Berroco Vintage Baby Handpaint Yarn - Acrylic DK

52% Acrylic 40% Wool 8% Nylon, 145yds (133m)/50g (1.76oz), DK | Light Worsted

$9.25
SALE Valley Yarns Huntington Coned Sock Yarn - 2lb Cone Yarn - Superwash Merino 4 Ply
Valley Yarns Huntington Coned Sock Yarn - 2lb Cone Yarn - Superwash Merino 4 Ply

75% Merino Wool 25% Nylon, 4260yds (3895m)/998g (35.2oz), Fingering

$69.92
$94.49
Plymouth Yarn Soft Serve Yarn - Acrylic Worsted 2 options
Plymouth Yarn Soft Serve Yarn - Acrylic Worsted

100% Acrylic, 207yds (189m)/100g (3.53oz), Worsted

$7.99
SALE Willow & Lark Drift Yarn - Merino Wool DK
Willow & Lark Drift Yarn - Merino Wool DK

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

$5.85
$9.00
Noro Akari Yarn - Silk Worsted 5 options
Noro Akari Yarn - Silk Worsted

26% Silk 21% Cotton 15% Viscose 14% Mohair 24% Other, 528yds (483m)/200g (7.06oz), Worsted

$47.50
Valley Yarns Valley Superwash DK 100 Gram Hanks Yarn
Valley Yarns Valley Superwash DK 100 Gram Hanks Yarn

100% Merino Wool, 274yds (251m)/100g (3.53oz), DK | Light Worsted

$12.49
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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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