Consumption Calculation Of Basic T-Shirt For Knit Items
Below factors need to be considered.
- Size of the t-shirt: The fabric consumption will vary based on the size of the t-shirt.
- Fabric width: The fabric width will also affect the amount of fabric required to make the t-shirt.
- Shrinkage: We also need to consider the potential shrinkage of the fabric after washing.
- Style and design details: Any additional design details or style features, such as a pocket or a collar, will require additional fabric.
Assuming a basic crew neck t-shirt, here is an approximate calculation for fabric consumption:
For a small size t-shirt:
- Fabric width: 60 inches (152 cm)
- Fabric consumption: 1 yard (0.91 meters)
For a medium size t-shirt:
- Fabric width: 60 inches (152 cm)
- Fabric consumption: 1.25 yards (1.14 meters)
For a large size t-shirt:
- Fabric width: 60 inches (152 cm)
- Fabric consumption: 1.5 yards (1.37 meters)
For an extra-large size t-shirt:
- Fabric width: 60 inches (152 cm)
- Fabric consumption: 1.75 yards (1.6 meters)
It’s important to note that these are approximate calculations and actual fabric consumption may vary depending on the specific fabric and t-shirt design.
To calculate the fabric consumption for a basic T-shirt, you can use the following formula:
Basic formula of fabric consumption:
Formula – 01: In centimeter
(Body Length + Sleeve Length + Seam Allowance) x (½ Chest + Seam Allowance) x 2 x GSM / 10,000 x 1000 + 10% (Wastage and extra cutting) x Doz. + TF (Trim Fabric)
Formula – 02: In Inch
(Body Length + Sleeve Length + Seam Allowance) x (½ Chest + Seam Allowance) x 2 x GSM / 1550 x1000 + 10% (Wastage and extra cutting) x Doz. + TF (Trim Fabric)
Example of Formula – 01 : In CM
| Measurement | Centimeter |
|---|---|
| Body Length (BL) | 46.5 cm |
| Sleeve Length (SL) | 14 cm |
| ½ Chest | 34 cm |
| Measurement | Centimeter |
|---|---|
| Body Length (BL) | = 46.5 cm + 4 cm = 50.5 cm |
| Sleeve Length (SL) | = 14 cm + 4 cm = 18 cm |
| ½ Chest | = 34 cm + 4cm = 38 cm |
- TF (Trim Fabric – Neck rib / binding) is 0.15 kg/Doz.
As per above measurement of this style, fabric consumption is;
= (BL + SL) x ½ Chest x 2 x GSM / 10,000 x 1000 + 10% Wastage x Doz. + TF
= (50.5 + 18) x 38 x 2 x 160 / 10,000 x 1000 + 10% x 12 + TF
= 1.0995 + 0.15 = 1.25 kg / Doz.
Example of Formula – 01 : In Inch
Item: Knitted basic T-shirt garment components are front, back and short sleeves. Fabric GSM (Gram per square) is 160.
| Measurements without allowance | Inch |
|---|---|
| Body Length (BL) | 18.307 inch |
| Sleeve Length (SL) | 5.511 inch |
| ½ Chest | 13.386 inch |
| Measurements with allowance | Inch |
|---|---|
| Body Length (BL) | = 18.307 inch + 2 inch = 20.307 inch |
| Sleeve Length (SL) | = 5.511 inch + 2 inch = 7.511 inch |
| ½ Chest | = 13.386 inch + 2 inch = 15.386 inch |
- TF (Trim Fabric – Neck rib / binding) is 0.15 kg/Doz.
As per above measurement of this style, fabric consumption is;
= (BL + SL) x ½ Chest x 2 x GSM / 1550 x 1000 + 10% Wastage x Doz. + TF
= (20.307 + 7.511) x 15.386 x 2 x 160 / 1550 x 1000 + 10% x 12 + TF
= 1.166 + 0.15 = 1.3164 kg / Doz.
Please note that, we used above formula to estimate only fabric weight that is consumed by a garment. Using the above formula, we didn’t include fabric loss due to fabric width, marker process loss and dying process loss or any defects. When we are going to purchase fabric from mills, we have to consider all of these parameters.
