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How much yarn do I need for a round rug?

When we wish to plan a crochet round rug we face many questions – What diameter of round rug is suitable for the room?

Which colors fit the room & its accessories? How to design the round rug? etc... After making all the decisions, our big challenge is to calculate how much yarn per each color do we need for our round rug. Since I crochet with different types of yarn, I needed a general formula that will "work" for all my round rugs - I think I find it. I hope it will assiat you too :)

You can purchase T-Shirt yarn in a lot of colors and shapes. I prefer the type which comes in a round flat shape and looks like a disk rot my round rug.

Usually this type of pack guarantees that the all disks of yarn will be the same width, since they were cut from a big fabric roll. Regarding the fabric itself – when I crochet a rug I always search for a fabric that contains cotton and an additional material – a combination which makes it more resistant. I also like the fabrics that contain viscose and lycra. rs I choose for my round rug are all from the same type and also that they are in the same thickness. Then, I will buy one disk in order to try it and make my calculations.

As I do not know the length of yarn in each disk I refer to its weight.

Even though the weight will vary from one disk of color to another, I can refer to it as an anchor as long as it is the same kind of fabric in the same width. Let’s see how :

I will relate to 3 variables and make the calculation for an approx. 120 cm diameter crochet round rug that contains my type of T-shirt yarn (17 rounds).


In each round of the round rug there are additional 12 dc stitches. So if I crochet 12 dc as the 1st round and weigh it, I will know what the additional yarn weight per round. I will also crochet the 2nd round that contains 24 dc and weigh it, just to make sure additional 12 dc weigh the same as the 12 dc which were crocheted in the first round.


I will decide about the crochet round rug colors division and insert all the info in the below 4 column table (“table 1”)


In an additional table (table 2″), I will gather the yarn weight per each color. Now I have to check what the weight of my disk is. Assuming that all the disks are approx. the same weight, I can make the yarn weight estimation per color (as written above, the roles from which the disks are cut might vary in weight, but a more accurate calculation should be made at the store later on).

My disk, for example, weighs 500 g. So assuming that other disks weigh approx. the same, I need to buy for my crochet round rug the following yarn, although I will not use it all: Deep Grey color – 4 disks. Silver Gray & Cream colors – 2 disks Light Pink color – 2 disks. Marshmallow color – 5 disks.

With these tables & data you can visit the store again, check the yarn stock and make all necessary changes if needed for your crochet round rug.

Hope you will find this info useful and wishing you happy crocheting

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