You will need
  • • the pattern of the future product;
  • • spokes or hook, you want to knit;
  • • a skein of wool selected for mating;
  • • the tape or ruler.
In order to accurately calculate the amount of yarn you need to determine the density of binding that will be used in the manufacture of products made of this yarn. It needs to associate a test sample. Knit it with the same tools, yarn and type of knit that will knit the entire product as a whole. The sample size must be sufficient to accommodate the report of the pattern (part pattern that repeats periodically in the pattern). Often the trial sample size is 20 (30) loops for 10 (12) rows.
By measuring the sides of the test specimen, a centimeter or a ruler to determine the exact number of loops per square centimeter. Sample width (i.e. distance between edge loops in a row) will be equal to the number of loops per inch in each row of the probe. The length of the vertical edges of the sample, you can determine how many rows will be in the centimeter.
After measuring the sides of the specimen to calculate the number of stitches and rows. It is necessary to divide the number of stitches (or rows) on the length of the sample in centimeters. For example, a sample of 30 stitches and 10 rows will have a size of 15 cm x 5 cm This means that in one square centimeter of the sample will be placed 2 stitches and 2 rows.
Now we need to determine the length or weight of thread used to vyvazhivanija this sample. If you have accurate scales, you can weigh the sample. So you can understand how many grams of yarn was spent on its vyvazhivanie. If the yarn is very light or you have no household electronic scales, will have to dissolve the sample, to measure a length of thread measuring tape or ruler. Then, you should divide it by the number of square centimeters of the sample. This will give an accurate length or weight of yarn, you will need to vyvazhivanija one square centimeter of the entire product.
Knowing the amount of yarn for one square centimeter of the finished product, you can calculate the amount of yarn that you will need for the entire product as a whole. Just need to find the total area of all parts. It is not difficult to do, as knitted things rarely have a complex shape patterns. If parts of more complex shape than a square, rectangle or trapezoid, it is necessary to calculate the yarn consumption stock, bringing them to a more simple shapes larger area.
Calculate the total area of the product, you need to multiply it by the length of yarn per square centimeter.