Woolly Mahoosive

Extremely Chunky Yarn & Crafts

Arm Knitted Blanket Help | How Much Yarn Do I Need? | How do I Care For Arm Knitting Yarn? | 3 Easy Arm Knitting Questions Explained

Arm Knitting Blanket Help | How Much Yarn Do I Need? | How do I Care For Arm Knitting Yarn | 3 Common Arm Knitting Questions Explained

arm knitted blanket in mustard mammoth acrylic yarn How much yarn do I need to make an arm knitted blanket?

This is the number one most common question, and understandably! For many of us, working with extremely chunky yarn such as ours is a first, not to mention switching out the knitting needles and using your arms to create your own arm knitted blanket!

We tend to return this question with two more questions to get an idea of what you are aiming for your project:

  1. How big is the arm knitted blanket that you wish to make?
  2. Which arm knitting yarn do you want to use? 

arm knitted blanket in teal mammoth acrylic yarn Once you have the answers to the above, our explanations below will help you decide how much arm knitting yarn you need for your chunky blanket project:

Mammoth Vegan Acrylic or Giant 100% Merino

Firstly, decide on the length and width of your desired arm knitted blanket in centimeters (cms).

A general rule when using Mammoth acrylic or Merino is 1 kg arm knitted makes around 1/2 meter square.

Therefore if you have a size in mind, the calculation below will give you the approx. amount you need.

Length x Width = ? divided by 5000. (The 5000 represents 1/2 square meter in cm)

Eg. 100 cm x 100 cm = 10000 / 5000 = 2. The 2 represents 2 kg.


If you don’t have a specific size in mind, you could aim for these more standard sizes of arm knitted blanket:

  • 2 kg makes approx. 70 cm x 145 cm
  • 4 kg makes approx. 145 cm x 145 cm.

Mahoosive Hint: If using our 40mm giant knitting needles rather than your arms,  add 25% to the above.



arm knitted blanket made with get stuffed tube yarn

Get Stuffed (Original) Tube Yarn 

For our stuffed tube yarn “get Stuffed” Approx. 53 meters per 1 kg. These calculations are based on arm knitted blankets:

  • 1 kg will produce an arm knitted blanket approx. 70 cm x 85 cm
  • 2 kg – approx. 70 cm x 170 cm, or 100 cm x 120 cm.
  • 3 kg –  approx. 130 cm x 130 cm
  • 4 kg – approx. 150 cm x 150 cm


arm knitted blanket made with chenille 3cm chunky yarn

Chenille (3cm) 

For Chenille (3cm thickness) arm knitted:

  • 4 x 300 grams approx. 80 cm x 125 cm size arm knitted blanket
  • 3 x 300 grams makes an arm knitted double bed runner


If you need help with the calculations, please get in touch either via our website contact page or on Instagram @woollymahoosive


How do I care for my yarn?

Merino is a luxury product and so needs gentle care. It can be spot cleaned or dry cleaned.

We recommend the merino and Mammoth for light use or decorative use.

Give your arm knitted blanket a good shake now and then to freshen it up. Please bear in mind that unless the yarn is fully felted, it will pill to some extent and shed. Trim off any bobbles from your arm knitted blanket.

Mammoth can be machine washed, gentle cool and a slow short spin. Dry flat and pull to shape.

Also a good shake and trim will refresh your blanket.

“Get stuffed” is washable. It can also be tumble dried on a low heat, or dried flat. This is very robust and is great for children and pet use.

Chenille This is very robust, washes very well on a 40 degree wash and will tumble dry. This is great for children who love to drag blankets around the house.

Ribbon yarn can also be machine washed and dried. Again very robust for regular use.


How long is shipping?

UK. We send DPD next working day delivery. For remote postcodes it will take 2 days including northern Island. We dispatch as fast as possible. Generally orders coming in up to 1pm will leave the same day. During busy times such as the Christmas period orders may dispatch a day later. Take note that if we book and order in for collection with DPD, after they have collected that day, then it will leave the next day.

Please relay on tracking once the parcel has been collected. Tracking will also give you a 1 hour delivery slot on the morning of delivery, usually by 10 am. So there is no reason to wait in all day. If you do not get a text or delivery on the day of expected delivery please check your tracking. Smaller lower weight parcels will be sent Royal Mail, and take 1 to 2 days.

Europe EU. Generally 2 to 3 days. Greece and Malta may be up to 7.

Europe Non EU. 3 to 7 days.

USA, Canada. Generally 2 to 7 days. The further East the quicker the delivery. So New York maybe 2 days and California 7 days.

Australia. Normally 3 to 7 days. The more remote the longer the delivery time.


Have you seen our arm knitting video? Click HERE to watch.



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