How Much Yarn To Knit A King Size Blanket? (1 Size to Fit 2 Types)

By Jodie Morgan | Last Updated: | Published:

Our included yarn calculation tables give you the quick answers to the question – How much yarn do I need to knit a king size blanket. No running out of yarn!

Shelves of different colored yarns - How Much Yarn to knit a King Size Blanket?

I reviewed, fact checked and updated this post on May 13, 2023.

Table Of Contents

Note: A king blanket is much larger than a throw blanket, a twin blanket, and a queen size blanket.

How Much Yarn Do I Need To Knit A King Size Blanket?

Here’s the answer to how much yarn for a king size blanket – a King Size blanket dimensions = 90″x 110.” Estimated yarn yardage: 10,050 yd / 9190 m. These estimates are based on the garter stitch in a Medium Weight #4 Worsted Yarn.

Guidelines For The Different King Sizes

There are 2 different sized King Mattresses in the United States – King Size and California King Size. The California King Size is slightly less wide but longer by 4 inches than the typical King size.

Here’s a table with suggested yardage requirements for a medium weight yarn, #4, (Worsted weight yarn), and finished measurement.

These yarn requirements are a rough guide. Please note my suggestions above, about all the factors that will affect exactly how much yarn is required. It’s always a good idea to purchase extra skeins of yarn. Just to ensure you don’t run out.

How Much Worsted Weight Yarn For A Knit King Size Blanket?

Here’s my handy guide for a knitted king Size blanket and yards of yarn required when knitting garter stitch with a medium weight #4 (worsted) yarn.

King Blanket Yarn Estimates
With Medium Weight Yarn (#4)

Final Size (In)

90 x 110 inches

Final Size (Cms)

229 x 279.5 cms

Estimated Yardage

10,050 yards

Estimated Meterage

9190 meters

How Many Yards Of Yarn For A King Size Blanket?

To knit a King Size Blanket in a medium weight yarn it will take approximately 10,050 yards of yarn. Here’s how to calculate how much yarn for a king size knitted blanket measuring 90″ x 110″ using the weight of a knitted swatch.


  • US7 (4.5mm) Knitting Needles
  • 1 skein of Worsted weight yarn #4
  • Digital scales
  • Calculator
  1. Knit a swatch measuring 6″x6″.
  2. Wash the swatch and block it.
  3. Weigh the swatch on a set of digital scales.
  4. For this example the swatch weighs 1oz.
  5. Calculate the total area in square inches of the swatch – width x height – 6×6 = 36 square inches.
  6. So for 36 square inches (6 inches x 6 inches) you need 1 oz of yarn.
  7. To find out how much you yarn you need for a blanket measuring 90″ x 110″ you need the total area of the king size blanket in square inches. So that’s 90 inches x 110 inches = 9900 square inches.
  8. Divide the total area of your blanket by the total area of your swatch
    9900/36 = 275
  9. Now times the weight of your swatch which is 1oz by 275
    1×275 = 275 ounces. In this example, you’d need a total weight of 275 ounces for a King Size Blanket.
  10. In this example a worsted weight yarn skein weighs 3.5 ounces with a yardage of 218 yards.
  11. To find how many skeins required for the king size blanket: 275 ounces divided by 3.5 ounces = 78.6 skeins. So rounded up you’d need 79 skeins
  12. To find out how much yardage: 218 yards per skein – 218 x 79 is a total of 17,222 yards.

How Many Skeins Of Yarn For A King Size Blanket?

50 skeins of yarn for a King Size Blanket. This is based on a typical worsted weight yarn weighing 3.5 oz which has 201 yds/184. Divide the total yardage, in the example above it’s 10050 by 201 which equals 50.

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Have questions? We’ve got answers to what people also ask.

How Much Merino Wool Yarn To Use For A King Size Blanket?

You need approximately 11lbs of Merino Wool Roving yarn to make a King Size Blanket of 60″ x 80″. Be aware that this is a expensive project, over $300USD!!

How Much Chunky Yarn For A King Size Blanket?

To make a king size chunky blanket knitting pattern, you need approximately 2333 yd / 2133 m of a yarn weight #6

How Much Bernat Blanket Yarn For A King Size Blanket?

You need approximately 2333 yd / 2133 m of Bernat Blanket Yarn for a finished blanket King Size measuring 108” / 274 cm x 90” / 229 cm.


Hope you found these tips helpful. Now you know how much yarn you’ll need, it’s time to start your next project! Discover great fibers to use in my guide.

That concludes my series explaining how much yarn for different-sized blankets. My previous article is how much yarn for queen size blankets.

About The Author

Jodie Morgan From Knit Like Granny

Jodie Morgan (Author & Founder) | Lives In: Chiang Mai, Thailand

Author: Jodie Morgan is a passionate knitter and blogger with 40+ years of experience currently living in Chiang Mai, Thailand. Taught by her mother and wonderful grandmother “Mama”, she fell in love with crafting from a young age. When she’s not knitting, you’ll find her enjoying a cup of coffee with cream, or sharing helpful resources and tips with the online knitting community. Get to know Jodie and the team on our meet the team page.

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