How to Calculate The Length of a Yarn the Easy Way

The label on the yarns usually says the weight and the length in each ball. But what if you are using some left over yarns or yarn stashes and had no idea of the length of them while your project says you need a certain length to complete?

Well here is the easiest and quickest way to find out. All you need is a tiny amount of yarns cut from the ball you wish to calculate and a digital pocket scale which is available at Amazon.com from under USD10. If you have no access to Amazon, check for it at shops which sells jewelry supplies. This tiny scale usually can measure the weight up to 100grams. The reason why we use the pocket scale is because it is used to measure the weight of jewelries and the accuracy is very close to the actual weight, and secondly we don’t have to cut such a long thread to measure.

The scale in the picture above indicates that the weight of the yarn which is 1 gram.
Now let measure this tiny yarn and see what we get. It says 45 in or 114.3 cm.
Now let check the weight of our stash… It says 19 grams. It means the length of the yarn is 
19 x 114.3 cm = 2,171.7 cm = 21.8 M  or 23.75 yards.
Now let’s try with different thickness of yarns. The previous yarn was a Light Worsted yarn. This one now is a thicker yarns, also came without label. All I know is the ball when it was new was 100 grams.
The scale says 1.26 grams, 

and it measures 55.2 inches
This ball ball is 49.25 grams
Now let’s do the math: 1.26 grams = 55.2 inches
1 gram = 55.2 : 1.26 = 43.8 inches
49.25 grams = 49.25 x 43.8 = 2,157 inches
—> round it off to the nearest 10 inches=2160 inches
2160 : 36 inches (1 yard) = 60 yards.
Easy peasy right? 

Above picture shows thickness comparison in different type of yarns. Lily Sugar and Cream is a 4 ply size 4 or Medium Worsted yarn, Indonesian Soft Cotton Big Ply  is a 14 ply yarn, and the Balinese Soft Cotton is an 8 ply yarn.
The number of ply is not  corresponding to the thickness of the yarn. It is simply denote the  number of  threads twisted together to form a yarn. To get a close possible to the pattern requirements you could check your tension or gauge and make adjustment in the size of the hook or substitute the yarn  accordingly. In many cases I double the yarn to achieve the gauge required. Depending on your location on planet earth in some cases it is not easy to get the exact brand. As long as you can get the same content of the yarn you can do the above trick to achieve the nearest result in fabric.


Calculation for Indonesian yarn
100 gr ball of Katun Bali Halus (Balinese Cotton Yarn) = 169 m
100 gr ball of Katun Besar Soft  (Soft Cotton Big Ply) = 169 m


This chart estimates how much yarn you will need for specific crafts using yarn produced in Indonesia. For other brands check the label of the yarn.

Indonesia use metric system so don’t forget the conversion 1 Yard = 0.91 m

Calculation example for crochet blanket using Katun Bali Halus
Baby blanket  = 1500 yard = 1365 m : 169 m = 8 ball
Adult = 3450yard = 3105 m : 169 m = 18.4 ( 19 balls)

Using Katun Besar Soft
Baby blanket = 1300 x 0.91 = 1183 : 169 = 7 balls
Adult  3450 m = 3450 x 0.91 = 3139 : 169 = 18.5 balls (19 balls)

© Image Copyright
Irtati Wibisono 2013

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HOW MUCH YARNS DO I NEED?

This chart estimates how much yarn you will need for specific crafts using yarn produced in Indonesia. For other brands check the label of the yarn.
Indonesia use metric system so don’t forget the conversion 1 Yard = 0.91 m


Yarn Brand
Crochet Yardage
AFGHAN

Baby 20″ x 30″
Adult 60″ x 60″
Lace 

1760
4500
Sport/DK
Katun Bali Halus
1500
3835
Light Worsted
Katun Besar Soft
Katun Bali Big Ply
Cashmillon
1300
3450
Bulky 

1100
2500
HAT

Child 18″
Adult 20″-22″
Lace

230
230-360
Sport/DK
Katun Bali Halus
230
230-360
Light Worsted
Katun Besar Soft
Katun Bali Big Ply
Cashmillon
162
195-210
SCARF

Child 6″ x 40″
Adult 8″ x 54″
Lace

572
860
Sport/DK
Katun Bali Halus
455
845
Light Worsted
Katun Besar Soft
Katun Bali Big Ply
Cashmillon
247
495
Bulky

163
325
SWEATER

Child (chest size) 24″ – 28″ – 32″
Adult (chest size) 36″ – 40″ – 44″ – 48″
Lace

675 – 1300 – 1885
2340 – 2730 – 3250 – 3510
Sport/DK
Katun Bali Halus 8 ply
715 – 1040 – 1430
1820 – 2080 – 2470 – 2730
Light Worsted
Katun Besar Soft
Katun Bali Big Ply
Cashmillon
650 – 845 – 1300
1560 – 1820 – 2080 – 2340
Bulky

360 – 650 – 910
1170 – 1300 – 1560 – 1690
VEST

Child (chest size) 24″ – 28″ – 32″
Adult (chest size) 36″ – 40″ – 44″ – 48″
Lace

520 – 715 – 975
1235 – 1465 – 1642 – 1885
Sport/DK
Katun Bali Halus
390 – 520 – 780
910 – 1175 – 1235 – 1430
Light Worsted
Katun Besar Soft
Katun Bali Big Ply
Cashmillon
325 – 455 – 650
780 – 975 – 1105 – 1235
Bulky

228 – 325 – 520
585 – 715 – 845 – 910

If you like what you see and made something from my free pattern, please credit me by mentioning my name and my blog and provide the link to my blog. Please DO NOT re upload my files by any means to another blog or website. All my photographs are copyrighted. Thank you.

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