Apparel Science

Calculate the consumption of knit garments

Consumption and costing is a primary requisite for a merchandiser. Fabric cost bears aprox 40% to 45% of the total cost of any garments so calculation of correct fabric consumption is very important.

Pls see below example of fabric consumption calculation 

1. During the consumption pls used measurement of middle size for calculation or used the size which has most of the qty.

2. Except Cutting or sewing wastage, fabric wastage also depends on additional elements which. If the garments have special print, wash, embellishment etc than the fabric wastage will be more than normal wastage

 

 

Description

Msmnt (cm)

Sewing Allowance

Total

Body Length

60

5

65

½ Chest

45

2

47

Sleeve Length

20

5

25

Armhole Circum

40

2

42

Fabric Wastage

10%

Depend on style and fabric

GSM

140

 

 

Consider the measurement of middle size garment or the garment containing maximum quantity.

Consumption:

Fabric Consumption Calculation of a Knit T-Shirt

Length

Width

Consumption in SCM

Back Part

     

65 cm ( length) x 47 cm ( Chest width)

65

47

3,055 scm

Front Part

     

65 cm ( Front length) x 47 cm ( Front chest width)

65

47

3,055 scm

Sleeve

     

25 cm ( Sleeve length) x 42 cm ( Armhole circumference) x 2 ( 2 sleeves)

25

42

2,100 scm

Total Fabrics Consumption

   

8,210 scm/pc

 

 

Apply below formula to make consumption for 1dzn garments : 

=(Fabric consumption in SCM X GSM X 12 / 10,000,000) + Wastage
=(8210 X 140 X 12 / 10,000,000) + 10%
=1.37928+10%
=1.37928+0.137928
=1.5172208 KG/DZN 

or

Description

Consumption in SCM/pcs

9600 scm into sm. (10000 scm=1sm)

0.821 sm/pc

Fabric is 140gsm, (1sm=140gram). So 0.821 sm=0.821x140=

114.94 gram/pc

 We know 1,000gram=1kg. So 114.94 gram=114.94/1,000=

0.1,149 kg/pc

Wastage 10%

0.01149 kg

Total Weight with wastage 

0.12639 kg/pc

Therefore, Weight of 1dzn (12 Pcs)

1.517 Kg/Dzn

 

 

Note:

scm=square centimeter 
sm=square meter 
1dozen (12pcs) garments
*Why 10,000,000?
10,000 x 1,000=10,000,000
Grams per square meter. Conversion of the fabric into square meter. 1m=100cm, 1sqr meter=10,000 cm (100cm x 100cm),
1 Kg=1,000 Gram.

Download automatic consumption calculator

   

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