The Ultimate Guide to Yarn Weights: Fingering, DK (Double Knit) vs Worsted

Understanding yarn weights is the key to smooth knitting and crocheting projects. When you work with the right yarn the project you make is easier, less frustrating, and showcases your creativity. Yarns come in various weights, fibers (merino wool or blends), textures, and even colors including hand-dyed yarns each serving a unique purpose for the project. What suits a crocheted lace shawl is quite different from the best choice for a knitted sweater or socks. And, the yarn weight is the deciding factor. In fact, many times the yarn for knitting projects is quite different from the suitable yarn for crochet projects. With so many things to consider it may become confusing but once you get it right there’s no going back. Explore premium yarns in hand-dyed shades with Symfonie Yarns!

But, first let’s explore the three mostly used yarn weights—Fingering, DK (Double Knitting), and Worsted. Knowing about their unique characteristics helps you make use of them beautifully.

Fingering Weight Yarn

Fingering weight yarn is one of the lightest and thinnest yarns available. This weight works well for both knitting and crochet. It is a recommended sock knitting yarn and is often used for lightweight accessories or garments. The fine gauge gives you excellent control over knitting or crocheting the fabric’s structure, resulting in beautiful lacework and detailed designs.

Characteristics:

  • Gauge: 28-32 stitches per 4 inches (10 cm)
  • Recommended knitting needle sizes: US 1-3 (2.25-3.25mm)
  • Recommended crochet hook sizes: C to D (2.75-3.25mm)

Projects to Try:

  • Lace Shawls: Fingering yarn’s lightweight nature is perfect for creating elegant, lacy patterns that are breathable yet cozy. Think of lace scarves or shawls.

Lace  Shawl

  • Baby Clothes: The extrafine merino wool has a softness and fine texture making it ideal for baby garments, giving a gentle feel to delicate skin.
  • Socks: Many sock knitters love fingering yarn for its strength and fine gauge, making it comfortable and durable. Terra’s merino-polyamide yarn adds to the durability. And, being machine washable it is handy for socks, hats, cowls and gloves/ mittens.

Terra Sock

DK (Double Knitting) Weight Yarn

DK weight yarn or double-knit yarn is next to fingering in terms of thickness. This makes it a versatile choice, ideal for a wide range of projects from garments to accessories. DK yarn provides a nice middle ground for crafters while maintaining flexibility and drape. You can explore in detail with our previous guide on all about DK weight yarn.

Characteristics:

  • Gauge: 20-25 stitches per 4 inches (10 cm)
  • Recommended knitting needle size: US 3-5 (3.25-3.75mm)
  • Recommended crochet hook size: F to G (3.75-4.50mm)

Projects to Try:

  • Sweaters & Cardigans: DK yarn is perfect for light and cozy sweaters and cardigans, providing warmth without the bulk. Experiment with Viva’s vibrant shades or the elegant merino silk yarn Luna that has a beautiful shimmer to it.

Sweater crafted using Luna Yarn

  • Baby Items: Soft and smooth DK yarn is ideal for baby blankets and clothing, ensuring both warmth and comfort.

Baby Sweater

  • Hats & Scarves: DK yarn offers just the right thickness for accessories that need to stay warm but lightweight.

If you want a yarn that works well for almost any project, from accessories to garments, DK weight yarn is a perfect choice.

3. Worsted Weight Yarn

Worsted weight yarn is one of the most commonly used yarns and a go-to choice for crafters of all levels. Beginners love the yarn as it is easy to handle and quick to stitch. It is thicker and heavier than DK weight, offering excellent warmth, durability, and structure. Ideal for projects that need a bit more substance, such as blankets, scarves, and winter garments. Bella’s extrafine merino wool with the bonus of machine-washable features makes it ideal for the fall and winter seasons.

Characteristics:

  • Gauge: 16-20 stitches per 4 inches (10 cm)
  • Recommended knitting needle size: US 7-9 (4.5-5.5mm)
  • Recommended crochet hook size: I-9 to K-10.5 (5.5-6.5mm)

Projects to Try:

  • Blankets: Worsted yarn creates warm, substantial blankets perfect for snuggling up in colder months.
  • Scarves & Cowls: This yarn’s thickness is perfect for cozy accessories that need extra warmth.

Cowl Crafted using Bella Yarn

  • Winter Garments: Worsted yarn is a great choice for knit and crochet garments that need to hold their shape, like sweaters and outerwear.

Scarf crafted using  Bella Yarn

Yarn Weight Table: A Quick Comparison of Fingering, Dk and Worsted Weight Yarns

Yarn Weight

Gauge (Stitches per 4 in.)

Recommended Knitting Needle Size

Recommended Crochet Hook Size

Best For Projects

Fingering

28-32

US 1-3
(2.25-3.25mm)

C to D 
(2.75-3.25mm)

Shawls, socks, hats, gloves/mittens & lace projects

DK (Double Knit)

21-24

US 3-5
(3.25-3.75mm)

F to G
(3.75-4.50mm)

Sweaters, baby items, hats, cardigans, shawls

Worsted

16-22

US 6-9
(4-5.5mm)

I-9 to K-10.5
(5.5-6.5mm)

Blankets, scarves, sweaters

This table provides a quick overview of the gauge, needle sizes, hook sizes, and ideal uses for each of the yarn weights we've discussed. Whether you're working on knitting or crochet projects, these guidelines will help you choose the perfect yarn weight. For winter garments both DK and worsted are great options. Our previous guide on DK vs Worsted Weight yarn will walk you thoroughly through it.

When selecting yarn, quality makes all the difference. Symfonie Yarns offers a vast selection of premium yarns ensuring that your projects are as luxurious and long-lasting as they are beautiful. Known for their vibrant colors and excellent durability, yarns are machine-washable, making them perfect for both everyday wear and special handmade gifts.

Whether you’re looking for fingering weight yarn (Terra); DK yarn (Viva and Luna), or worsted-weight yarn (Bella), Symfonie Yarns has everything you need. The hand-dyed yarns in semisolid or variegated shades are designed with knitters and crocheters in mind, offering just the right balance of softness, durability, and easy care for all your projects.