**Contents**show

## How do you calculate fabric count?

The direct system is calculated with the formula **N = (W/l) / (L/w)**. The indirect system uses the formula: N = (L/w) / (W/l). In these formulas, N is the yarn count, W is the weight of a sample of yarn, l is the unit of length, L is the length of the sample, and w is the unit of weight.

## How do you calculate yarn count in GSM?

The count is a numerical value, which expresses the coarseness or fineness (diameter) of the yarn. And also indicates the relationship between length and weight (the mass per unit length or the length per unit mass) of that yarn.

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Relation Among Yarn Count, Machine Gauge & Fabric GSM:

G.S.M. | Count | Gauge |
---|---|---|

130 | 32 s | 24 gg |

140 | 30 s | 24 gg |

150 | 28 s | 24 gg |

160 | 26 s | 24 gg |

## How are warps calculated?

To calculate the amount of weft, you need to **know warp width, the number of picks per inch, and the length of the weaving**. I usually add ten percent to that number for weft take-up. (So for an 8″ wide warp woven at 20 picks per inch for 65″: 8″ x 20 x 65″ = 10,400″ divided by 36″/yd = 288 yd plus 10% = 317 yd.

## What is a fabric count?

So the fabric count refers **to the number of threads or squares per linear inch in the material**. Common fabric counts of Aida range from 10 to 22 squares-per-inch. … Fabric counts are referred to by naming the number of threads or squares-per-inch and adding -count.

## How do you calculate fabric consumption in meters?

Question: Fabric weight 50 kg, Fabric width 40 inch (tube) GSM 180. What is fabric length in meter? 3. Question: Fabric price 2.25 USD/ yds, Width 45 inch open, GSM 200, Consumption 3.20 kg/doz, what is the garment fabric cost for per doz garments?

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1. Sewing Allowance:

Bottom Hem | = 2.5-3 Cm |
---|---|

Grand Total | =10 cm |

## How is thread consumption calculated?

**Example:**

- Length of seam = 220 cm.
- Stitch class 301 = Single thread lock stitch.
- Thread ratio obtained from the table (thread length per cm of seam) = 2.5 cm.
- Total sewing thread consumption = 220 × 2.5 = 550 cm.
- Consumption of needle thread = 1210 × 0.25 = 275 cm.
- Consumption of looper thread = 1210 × 0.75 = 275 cm.

## What does EPI mean in yarn?

Overview: The **number of yarn ends per inch** (or EPI) is the number of warp strands you must warp in one inch on the loom. It affects the design and appearance of the weaving. It can also influence the visibility of the weft yarns.