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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 String Amalfi 17 options
String Amalfi

39% Viscose 25% Wool 22% Silk 14% Cashmere, 180yds (165m)/50g (1.76oz), Worsted

$18.20
$26.00
Mode At Rowan Alpaca Haze 12 options
Mode At Rowan Alpaca Haze

58% Alpaca 22% Wool, 232yds (212m)/25g (0.88oz), Sport

$8.00
SALE Juniper Moon Farm Summer Solstice Paint 8 options
Juniper Moon Farm Summer Solstice Paint

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

$18.71
$24.95
Lion Brand Vanna's Choice 60 options
Lion Brand Vanna's Choice

100% Acrylic, 171yds (156m)/100g (3.53oz), Worsted

$8.56
SALE Trendsetter Yarns Wisdom 18 options
Trendsetter Yarns Wisdom

53% Merino Wool 47% Cotton, 135yds (123m)/50g (1.76oz), DK | Light Worsted

$9.24
$11.55
SALE Sesia Rebelle 10 options
Sesia Rebelle

55% Merino Wool 32% Mohair 13% Silk, 98yds (90m)/50g (1.76oz), Worsted

$10.01
$19.99
Juniper Moon Farm Cirrus 12 options
Juniper Moon Farm Cirrus

100% Cotton, 328yds (300m)/100g (3.53oz), DK | Light Worsted

$23.95
SALE Plymouth Yarn Angora Mist 5 options
Plymouth Yarn Angora Mist

80% Angora 20% Nylon, 122yds (112m)/25g (0.88oz), Worsted

$14.39
$17.99
Hayfield Spirit Chunky 16 options
Hayfield Spirit Chunky

80% Acrylic 20% Wool, 170yds (155m)/100g (3.53oz), Bulky

$8.75
Blue Sky Fibers Prairie 14 options
Blue Sky Fibers Prairie

53% Alpaca 47% Baby Alpaca, 273yds (250m)/50g (1.76oz), Fingering

$15.00
SALE Adriafil Carosello 6 options
Adriafil Carosello

40% Acrylic 30% Mohair 30% Nylon, 82yds (75m)/50g (1.76oz), Bulky

$6.50
$12.99
SALE Koigu Jasmine Festive Mini Skein Set 4 options
Koigu Jasmine Festive Mini Skein Set

100% Merino Wool, 1440yds (1317m)/25g (0.88oz), DK | Light Worsted

$153.60
$192.00
Noro Akari Solo 18 options
Noro Akari Solo

26% Silk 21% Cotton 15% Viscose 14% Mohair 24% Other, 524yds (479m)/200g (7.06oz), Worsted

$47.50
Lion Brand Wool Ease Thick & Quick 68 options
Lion Brand Wool Ease Thick & Quick

86% Acrylic 10% Wool 4% Rayon, 106yds (97m)/170g (6oz), Super Bulky

$10.69
Cascade Yarns Baby Alpaca Chunky Discontinued Colors 67 options
Cascade Yarns Baby Alpaca Chunky Discontinued Colors

100% Baby Alpaca, 108yds (99m)/100g (3.53oz), Bulky

$19.00
Lion Brand Homespun 71 options
Lion Brand Homespun

98% Acrylic 2% Polyester, 185yds (169m)/170g (6oz), Bulky

$8.49
SALE Koigu KPPPM Festive Mini Skein Set 4 options
Koigu KPPPM Festive Mini Skein Set

100% Merino Wool, 2175yds (1989m)/25g (0.88oz), Fingering

$160.00
$200.00
Brassard 8/2 Cotton Weaving Yarn 23 options
Brassard 8/2 Cotton Weaving Yarn

100% Cotton, 1673yds (1530m)/227g (8.01oz), Lace | 2 Ply

$12.00
SALE Jody Long Artesano 10 options
Jody Long Artesano

52% Wool 35% Alpaca 10% Silk 3% Viscose, 273yds (250m)/100g (3.53oz), DK | Light Worsted

$19.60
$24.50
King Cole Fashion Aran 57 options
King Cole Fashion Aran

70% Acrylic 30% Wool, 219yds (200m)/100g (3.53oz), Aran

$8.42
MODE at Rowan Cotton DK 12 options
MODE at Rowan Cotton DK

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

$6.00
Noro Ohajiki 8 options
Noro Ohajiki

50% Cotton 20% Silk 15% Wool 15% Viscose, 459yds (420m)/150g (5.29oz), Worsted

$41.95
Juniper Moon Farm Zooey Stripes 12 options
Juniper Moon Farm Zooey Stripes

60% Cotton 40% Linen, 284yds (260m)/100g (3.53oz), DK | Light Worsted

$23.95
Rowan Colours by Kaffe Fassett Kidsilk Haze 7 options
Rowan Colours by Kaffe Fassett Kidsilk Haze

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

$18.00
SALE Plymouth Yarn Hearthstone 10 options
Plymouth Yarn Hearthstone

80% Merino Wool 20% Alpaca, 436yds (399m)/100g (3.53oz), Sport

$9.00
$18.00
Sirdar Happy Cotton Assortment Pack
Sirdar Happy Cotton Assortment Pack

100% Cotton, 2351yds (2150m)/1000g (35.27oz), DK | Light Worsted

$107.00
Mode at Rowan Alpaca Wool 11 options
Mode at Rowan Alpaca Wool

50% Alpaca 50% Wool, 127yds (116m)/50g (1.76oz), DK | Light Worsted

$9.00
SALE MODE at Rowan Mohair Soft 11 options
MODE at Rowan Mohair Soft

60% Mohair 40% Wool, 137yds (125m)/50g (1.76oz)

$8.80
$11.00
SALE Berroco Mystery Blanket Knit Along Kit 13 options
Berroco Mystery Blanket Knit Along Kit

52% Acrylic 40% Wool 8% Nylon, 3917yds (3582m)/1800g (63.49oz), Worsted

$144.00
$180.00
Sirdar Jewelspun Ombre 12 options
Sirdar Jewelspun Ombre

100% Acrylic, 1094yds (1000m)/400g (14.11oz), Aran

$33.00
Rowan Colours by Kaffe Fassett Felted Tweed 7 options
Rowan Colours by Kaffe Fassett Felted Tweed

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

$15.75
Mode at Rowan Alpaca Cotton 12 options
Mode at Rowan Alpaca Cotton

57% Alpaca 43% Cotton, 131yds (120m)/25g (0.88oz), DK | Light Worsted

$11.00
SALE Cascade Cotton Sox Splash 14 options
Cascade Cotton Sox Splash

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

$9.00
$12.00
SALE Lang Yarns Secret Garden 8 options
Lang Yarns Secret Garden

84% Cotton 16% Nylon, 263yds (240m)/50g (1.76oz), DK | Light Worsted

$12.80
$16.00
Plymouth Yarn Baby Alpaca Sport EC 11 options
Plymouth Yarn Baby Alpaca Sport EC

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

$12.99
SALE Paintbox Yarns Chunky Pots 21 options
Paintbox Yarns Chunky Pots

100% Acrylic, 297yds (272m)/200g (7.06oz), Bulky

$8.05
$11.50
SALE Plymouth Yarn Dreamland Fancy 6 options
Plymouth Yarn Dreamland Fancy

97% Acrylic 3% Nylon, 84yds (77m)/50g (1.76oz), Bulky

$2.05
$4.09
Mode at Rowan Chunky Wool 11 options
Mode at Rowan Chunky Wool

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

$13.00
Juniper Moon Farm Cumulus Stripe 5 options
Juniper Moon Farm Cumulus Stripe

94% Cotton 6% Nylon, 252yds (230m)/100g (3.53oz), Worsted

$26.95
Cascade Yarns Kid Seta 60 options
Cascade Yarns Kid Seta

74% Mohair 26% Silk, 232yds (212m)/25g (0.88oz), Lace | 2 Ply

$13.00
King Cole Cottonsoft DK 46 options
King Cole Cottonsoft DK

100% Cotton, 230yds (210m)/100g (3.53oz), DK | Light Worsted

$9.63
SALE Trendsetter Yarns Cheerleader 8 options
Trendsetter Yarns Cheerleader

37% Polyester 28% Alpaca 22% Nylon 13% Merino Wool, 120yds (110m)/50g (1.76oz), Worsted

$8.00
$16.00
SALE Berroco Hearthside 8 options
Berroco Hearthside

40% Alpaca 27% Wool 33% Cotton, 159yds (145m)/100g (3.53oz), Bulky

$15.20
$19.00
SALE Trendsetter Yarns Phoenix Print 8 options
Trendsetter Yarns Phoenix Print

66% Viscose 34% Cotton, 100yds (91m)/50g (1.76oz), Worsted

$5.25
$10.50
Koigu Supernova MKAL 2023 Yarn Pack 5 options
Koigu Supernova MKAL 2023 Yarn Pack

100% Merino Wool, 400yds (366m)/400g (14.11oz), Fingering

$129.00
SALE Trendsetter Yarns Celebrate 6 options
Trendsetter Yarns Celebrate

100% Cotton, 295yds (270m)/100g (3.53oz), DK | Light Worsted

$10.00
$20.00
SALE Lion Brand Mandala 44 options
Lion Brand Mandala

100% Acrylic, 591yds (540m)/150g (5.29oz), DK | Light Worsted

$6.79 - $8.49
$8.49
Stylecraft Highland Heathers DK 23 options
Stylecraft Highland Heathers DK

100% Acrylic, 297yds (272m)/100g (3.53oz), DK | Light Worsted

$6.89
Lion Brand Hometown USA 77 options
Lion Brand Hometown USA

100% Acrylic, 81yds (74m)/142g (5.01oz), Super Bulky

$5.99
Tahki Yarns Donegal Tweed 42 options
Tahki Yarns Donegal Tweed

100% Wool, 183yds (167m)/100g (3.53oz), Worsted

$15.99
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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.