Our included yarn calculation table gives you the quick answers to the question – How much yarn do I need to knit a Baby Sweater? Sizes for a 6 month, 12 month and 18 month old baby. No running out of yarn!

Table Of Contents
- How Much Yarn Do I Need To Knit A Baby Sweater?
- How Much Worsted Weight Yarn For Knitting A Baby Sweater?
- How Many Yards Of Yarn Do I Need To Knit A Baby Sweater?
- How Many Skeins Of Yarn Do I Need For A Baby Sweater?
- How Many Balls Of Yarn For Baby Sweater?
- How Many Ounces Of Yarn For A Baby Sweater?
I highly recommend using a pattern to knit a Baby Sweater. The designer gives details of the yarn weight and the yardage.
The example pattern I’m using is the Caron Simply Cute Pullover baby sweater pattern using garter stitch. It is a great option for beginners. There’s a range of size inclusions.
How Much Yarn Do I Need For A Baby Sweater?
Using Worsted Weight #4 Yarn here is how much yarn you need for 3 different sizes of baby sweater for 6 months, 12 months and 18 month olds.
6 Months
To knit a Baby Sweater measuring finished chest 19 inches (48 cm) – (using the example pattern) you will need a minimum of 330 yards (300 meters) of Worsted Weight #4 yarn, total weight of 7 oz (200 g) – Number of skeins is 2 skeins (each skein weighs 3.5 oz/ (100 g).
12 Months
To knit Baby Sweater measuring finished chest 20 inches (51 cm) – (using the example pattern) you will need a minimum of 330 yards (300 meters) of Worsted Weight #4 yarn, total weight of 7 oz (200 g) – Number of skeins is 2 skeins (each skein weighs 3.5 oz/ (100 g).
18 Months
To knit Baby Sweater measuring finished chest 21 inches (53.5 cm) – (using the example pattern) you will need a minimum of 330 yards (300 meters) of Worsted Weight #4 yarn, total weight of 7 oz (200 g) – Number of skeins is 2 skeins (each skein weighs 3.5 oz/ (100 g).
How Much Worsted Weight Yarn Needed For Baby Sweater?
Here’s my handy guide to how much worsted weight yarn for knitting a Baby Sweater and yards of yarn required when knitting garter stitch (using the example pattern) in 3 different sizes.
6 month Size Baby Sweater Yarn Estimates
With Worsted Weight Yarn (#4)
Finished Chest (In)
19 inches
Finished Chest (Cms)
48 cms
Estimated Yardage
330 yards
Estimated Meterage
300 meters
Estimated Ounces
7 oz
Estimated Grams
200 gms
Estimated Skeins
2 skeins
12 month Size Baby Sweater Yarn Estimates
With Worsted Weight Yarn (#4)
Finished Chest (In)
20 inches
Finished Chest (Cms)
51 cms
Estimated Yardage
330 yards
Estimated Meterage
300 meters
Estimated Ounces
7 oz
Estimated Grams
200 gms
Estimated Skeins
2 skeins
18 month Size Baby Sweater Yarn Estimates
With Worsted Weight Yarn (#4)
Finished Chest (In)
21 inches
Finished Chest (Cms)
53.5 cms
Estimated Yardage
330 yards
Estimated Meterage
300 meters
Estimated Ounces
7 oz
Estimated Grams
200 gms
Estimated Skeins
2 skeins
How Many Yards Of Yarn Do I Need to Knit A Baby Sweater?
To knit a Baby Sweater measuring finished chest 19 inches (48 cm) – (using the example pattern) you will need a minimum of 330 yards (300 meters) of Worsted Weight #4 yarn.
How Many Skeins Of Yarn Do I Need For A Pair Of Baby Sweater?
To knit a Baby Sweater measuring finished chest 19 inches (48 cm) – (using the example pattern) you will need a minimum of 2 skeins (each skein weighs 3.5 oz/ (100 g).
How Many Balls Of Yarn Do I Need For Knit Baby Sweater?
To knit a Baby Sweater measuring finished chest 19 inches (48 cm) – (using the example pattern) you will need a minimum of 2 skeins (each skein weighs 3.5 oz/ (100 g) of Worsted Weight #4 Yarn
How Many Ounces Of Yarn For Knit Baby Sweater?
To knit a Baby Sweater measuring finished chest 19 inches (48 cm) – (using the example pattern) you will need a minimum of 7 oz (200 g) of Worsted Weight #4 yarn.
Pin Now To Save For Later

Now you know how much yarn you’ll need to knit a Baby Sweater, it’s time to start your next project!
Want to know which yarn is best to use for knitting a Baby Sweater? To see my current recommendations, search for my article – The Best Yarns for Knitting.
Want more fun knitting content, resources and inspiration? Sign up to our email list below for exclusive goodies that are only for subscribers.