I want to use a different yarn than the one used in the written pattern.
Sometimes you will find a pattern from another Country and it is not possible to get the yarn used in the written pattern. In these cases you may want to try to substitute with a different yarn.
Remember this calculation will provide you with the approximate yardage (an approximate length of yarn) you need but there are other important factors to take into consideration – especially for crocheting items like garments (i.e. clothing, hats, sized apparel) – because the yarn itself – being cotton, acrylic, wool, etc. will also play a large part in the drape and feel of the fabric you create.
Please note: You need to play CLOSE attention to the gauge you reach as this will determine if your finished project will meet the dimensions specified in the instructions. So make sure you try a gauge swatch and compare it to the one provided in the pattern.
I offer you no guarantee that you will be pleased by the end result when you substitute a different yarn for the one used in the written pattern. If you are willing to give it a try – you do so at your own risk.
I am not liable for the costs (physical or financial) you incur for the purchase of the yarn, nor the time you invest in your project!
Now that I have that out of the way – here’s how you calculate how much yarn you need!
The pattern indicates you need 200g of Yarn A.
On the Yarn Label you see that Yarn A is sold in 50 g balls and each ball has 75 m.
So you would need to purchase 200g / 50 g = 4 balls of Yarn A to have 200g in total (200 g divided by 50 g equals 4 balls)
Each ball has 75 m of yarn. 4 balls x 75 m = 300 m of yarn (4 balls multiplied by 75 m equals 300 m)
Say you don’t want to use Yarn A or it is available across the Pond and the cost to get the yarn is not an option for you – so you want to use Yarn B instead… this is how you find out how much of Yarn B you need (approximately).
100g balls with 156 m in each ball
You know you need 300 m of Yarn A from the above calculation.
So if you want to use Yarn B you need 300 m / 156 m = 1.92 balls of this yarn (300 m divided by 156 m equals 1.92 balls of yarn) and since we can’t purchase partial balls you will always need to round up – to the next whole number of balls of yarn. You will need 2 balls of Yarn B for the project.
One final point I want to bring to your attention – you can find out how many grams per meter are in the yarn (to give you a yarn ‘weight’). You obviously wouldn’t want to use a super heavy weight yarn in place of a light cotton weight yarn for an outfit because it would look completely different than the Design you wanted to make.
Yarn A (Scheepjeswol Stonewashed XL) : 50 g / 75 m = 0.667 g/ every m
Yarn B (Lion Brand Yarns: Vanna’s Choice): 100 g/ 156 m =0.641 g/ every m
These are pretty close 🙂
But if you wanted to substitute this yarn:
Yarn C: Bernat Softee Chunky 11sts
- Ball Size – Solids: 100g / 3.5 oz, 99 meters / 108 yards
100 g/ 99 m = 1.01 g / every m
It would be MUCH too heavy!
Yarn D: Bernat Handicrafter Cotton Size 10
- Ball Size: 400g / 14 oz, 2,240 meters / 2,450 yards
400 g/ 2240 m = 0.17 g / every m
It would be MUCH too fine!
I hope this is helpful 🙂