How to Calculate Fabric Consumption for Garments

A practical guide to estimating fabric usage, waste, and fabric cost per garment.

This guide focuses on the inputs and formulas needed to calculate net fabric, gross fabric, and fabric cost.

Fabric consumption is the amount of fabric required to produce one garment. It is one of the most important inputs in garment costing because fabric often represents the largest share of total production cost.

A correct estimate must consider garment dimensions, number of pieces, marker efficiency, and waste allowance.

Inputs required for fabric consumption

  • Garment length
  • Pieces per garment
  • Marker efficiency (%)
  • Waste allowance (%)
  • Fabric price

Fabric consumption formula

Net Fabric per Garment = (Length per Piece × Pieces per Garment) / (Marker Efficiency % / 100)

This formula corresponds exactly to how fabric consumption is calculated in production planning systems and in the Fabric Consumption Calculator. For a deeper explanation of the underlying logic and inputs, see the fabric consumption method.

Example: fabric consumption calculation

In this example, garment length is first converted from inches to yards, and marker efficiency is applied as a decimal (82% = 0.82).

  • Garment length: 28 inches
  • Pieces per garment: 2
  • Marker efficiency: 82%
Length in yards = 28 / 36 = 0.78
Net Fabric = (0.78 × 2) / 0.82
Net Fabric = 1.90 yards

Adding waste allowance

Real production always includes fabric waste due to cutting loss, defects, and handling. This is added as a percentage.

Gross Fabric = Net Fabric × (1 + (Waste % / 100))
Gross Fabric = 1.90 × (1 + (8 / 100))
Gross Fabric = 2.05 yards

Fabric cost per garment

Fabric Cost = Gross Fabric × Fabric Price
Fabric Cost = 2.05 × 3.20
Fabric Cost = 6.56 USD

Why marker efficiency matters

Marker efficiency has a strong impact on fabric consumption. Small changes in efficiency can significantly change fabric cost per garment, especially in large production orders.

Calculate fabric consumption instantly

Use the Fabric Consumption Calculator to estimate fabric usage, waste, and cost per garment with your own inputs.

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