What is sport weight yarn?

Sport weight yarn is a versatile and much-loved choice for knitters and crocheters alike. But what exactly is sport weight yarn, and how does it compare to other types of yarn? Let’s talk you through the unique characteristics of sport weight, what projects pair well with this yarn type and how it stacks up against other yarn weights. Get ready to become a sport weight champion!

What is sport weight yarn?

In a nutshell, sport weight yarn is like the Goldilocks of yarn - not too thin, not too thick, but just right! It falls between fingering weight (also known as sock weight) and DK (double knitting) or light worsted weight yarn. It's the perfect choice for your lightweight projects, from adorable crocheted cardigans to breezy summer accessories.

Characteristics of sport weight yarn

Sport weight yarn typically has a gauge of 6-8 stitches per inch when knit using US 2-4 (2.75-3.5mm) needles, or 23-26 stitches per 4 inches (10cm) for crochet projects using size E or sizes 4-7 (3.50-4.50mm) hooks. It's often made from natural fibres such as wool, alpaca, cotton, and can also be blended with synthetic fibres for added durability or texture!

What number is sport weight yarn?

Sport weight yarn is classified as a number 2 yarn on the Craft Yarn Council's Standard Yarn Weight System. In the UK, Europe, and Australia, sport weight yarn is often referred to as 5-ply yarn.

What is the difference between worsted and sport weight yarn?

The main difference between worsted and sport weight yarn lies in their thickness and weight. Worsted is the big brother, heavier and thicker, perfect for winter knits and snuggly blankets. Sport weight yarn is lighter and more delicate, making it perfect for intricate stitch patterns and offers a softer drape than worsted weight yarn.

How does sport weight yarn compare to other yarn weights?

See our handy chart to find out how sport yarn shapes up against other yarn weights.

US	UK	Needle width
Lace	1 ply	1.5 - 2.25mm
Fingering	2 ply	1.25 - 3.5mm
Sport	4 ply	3.5 - 4.5mm
DK	DK	4.5 - 5.5mm
Worsted	Aran	5.5 - 6.5mm
Bulky	Chunky	6.5 - 9mm
Super Bulky	Super Chunky	9mm +

Choosing the right sport weight yarn for your project

Whether you’re crafting a delicate spring jumper, or some new homemade pieces for the house, selecting the right sport weight yarn for your project can be confusing. We’re here to help! Here are some factors to consider when choosing sport weight yarn:

Fibre content

Firstly, it’s good to consider the material the yarn you use is made from. If you're looking for a warm and fuzzy winter garment or accessory, you'll want to go with a wool-based sport weight yarn. Or, if you're crafting something for summer or a little something for a baby cotton or bamboo yarns are great lightweight, breathable options.

Texture and stitch definition

This thinness of sport weight yarn allows for excellent stitch definition, making it a great choice for projects with intricate patterns and textural stitching. Do keep in mind that some sport weight yarns may have a fuzzier or bouncier texture than others, which can impact the final look and feel of your finished item.

Sport weight yarns

Some of the top sport weight yarns out there include Debbie Bliss Baby Cashmerino, Malabrigo Arroyo, Cascade 220 Sport. These yarns come in a range of gorgeous colors and textures, and are perfect for intricate patterns or textured stitches.