How to calculate Consumption in Garments?

Knit fabrics are usually measured in kilogram whereas it is related to GSM as well. Knit fashion is now popular in the world market. Knit merchandising is not so easy thing whatever consumption is one of the key factors for knit merchandising. T-shirts, pull over, polo-shirt (long sleeve or short sleeve) are treated as knit top garments as well as trouser and pant are treated as knit bottom garments.

Consumption formula for any TOP knit Garments

 (Measurement in CM)

{(B.L + S.L. + Allowance) X (1/2 Chest + Sewing Allowance) X 2 X GSM X 12 ÷ (10000 X 1000)} +Wastage%   kg/dz   

Here,

1.   Body length of the garments in cm. Say it is - 73 cm

2. Sleeve length of the garments in cm. Say it is - 19.5 cm

3. Approximate sewing allowance at body hem, shoulder joint, sleeve hem & armhole joint (in cm). Say it is - 10 cm 

4. Chest width (1/2) in cm. Say it is - 52 cm

5. Approximate sewing allowance at both side seams (in cm). Say it is - 4 cm

6. Fabric GSM (finish). Say it is - 160 gsm

7. Approximate fabric wastage in various stages. Say it is - 10%
8. 10000 means cm is converted into meter

        9. 1000  means gram is converted into kg

Rules: 

= {(B/length + S/length + Sewing Allowance) X (1/2 Chest + Sewing Allowance)}X 2 X GSM X 12 / 10000000 + Wastage
= {(73 + 19.5 + 10) X (52 + 4)} X 2 X 160 X 12 / 10000000 + 10%
= (102.5 X 56) X 2 X 160 X 12 / 10000000 + 10%
= 5740 X 2 X 160 X 12 /10000000 +10%
= 22041600 / 10000000 + 10%
= 2.20416 + 10 %
= 2.424576
= 2.43 kg per dozen. (Consumption)

(Measurement in INCH)

(B.L + S.L. + Allowance) X (1/2 Chest + Allowance) X 2 X GSM X 12 ÷ (1550X 1000) +Wastage%    kg/dz   

Here, 

B.L - Body Length

S.L - Sleeve Length

Allowance - Allowance would have considered for both B.L and S.L

1550 means inch is converted into meter (1 inch = 39.37" where inch square will be 39.37"X39.37")

1000 means gram is converted into kg