How much wool for a baby cardigan?

How many 100 g balls of wool for each baby size?

The table shows one-colour DK cardigans. Age labels vary between designers, so read the measurement table too. The premature design is a smaller, separate example; do not size it up by age alone.

DK is UK double knitting (US light / category 3; often called 8 ply in Australian patterns). These three UK acrylic yarns hold different lengths: Special DK 295 m, Simply DK 276 m and Bambino DK 268 m, all in 100 g balls. “Wool” is the everyday shopping word here, not a claim about their fibre.

The measurements behind these quantities

A “to fit” chest is the child’s measurement; a finished chest is the cardigan measured all the way round. They are different numbers. Ella has room built into the garment, and Círiel lists a to-fit chest instead. Measure in centimetres and use the designer’s own size choice.

Check shoulder to hem and underarm to cuff as well. A longer cardigan or longer sleeves will need more yarn. A baby’s age is a starting point, not a tape measure.

What about an aran baby cardigan?

Ella switches from DK to US worsted yarn for its 6–12 month size. That example uses about 423 m on a 5 mm hook, for a 46 cm to-fit chest and 55 cm finished chest. It works out at 3 × 100 g balls of Special Aran (196 m per ball) or Simply Aran (184 m). That is one pattern, not an aran range for every baby cardigan.

Keep this figure separate from Círiel’s 6–12 month DK quantity. Aran is roughly the UK counterpart to US worsted, but the tension and drape still need checking.

How we worked out metres, grams and balls

We checked three designers’ published material lists and size measurements on 12 October 2026. Two designs give comparable 0–3 and 3–6 month DK quantities; the third adds a premature example. We have not made or weighed these cardigans.

We kept stated metres, or converted yards by multiplying by 0.9144. For each named UK yarn, divide the unrounded length by metres per ball and round up. Estimated grams use that yarn’s metres per 100 g, not the weight of the original yarn. There is no added blanket percentage or invented average.

What changes the amount of wool?

Texture, longer sleeves, wider button bands, colour changes and your tension can all change the shopping list. Use the exact pattern quantity when it is available. A ball-band needle tension is a knitting reference; check the pattern’s crochet tension before choosing the hook.

For two colours, calculate each colour separately. A five-colour pack is only useful if it contains enough of every shade your pattern needs. Two balls in one shade and one each of five shades are different shopping lists.

Choosing wool for a baby gift

The three DK yarns above are 100% acrylic. Their checked care instructions allow a 30°C machine wash and cool or low tumble drying. Follow the label on the actual yarn, and give the recipient that care information. A baby-yarn name does not prove a fibre is hypoallergenic.

Bambino’s manufacturer suggests a 4 mm hook, while Ella uses different hooks for different sizes. Follow the pattern’s tension. We use UK stitch names here; Ella’s original instructions use US terms, where sc means UK double crochet and dc means UK treble.

Common questions

Sources and scope

• maisieandruth.com/crochet-baby-cardigan-pattern-the-ella-cardie/
• www.crazypatterns.net/en/items/57377/pattern-c-riel-baby-cardigan
• www.babycrochetdesigns.com/preemie-cosy-cottage-cardigan
• www.stylecraft-yarns.co.uk/yarns/special-dk
• www.lovecrafts.com/en-gb/products/paintbox-yarns-simply-dk
• stylecraft-yarns.co.uk/yarns/bambino
• www.stylecraft-yarns.co.uk/yarns/special-aran
• www.lovecrafts.com/en-gb/products/paintbox-yarns-simply-aran

Sources checked 12 October 2026. Label facts come from the linked references; worked purchase examples and arithmetic are our own illustrations. Original pattern and product names retain their source spelling.