PRE-MARKER GGD ESTIMATOR
Jeans Pattern Fabric Consumption Calculator
Estimate fabric consumption from waist, hip, thigh, knee, bottom, rises, inseam, fabric width and shrinkage — before a production marker is available.
Estimated consumption
| Calculation stage | Value |
|---|---|
| Main trouser body area | — |
| With small components + seam allowance | — |
| Marker efficiency used | — |
| Shrinkage used | — |
| Order/cutting allowance | — |
Important: This is a pre-marker GGD planning estimate based on garment dimensions and geometric assumptions. It cannot equal an actual CAD marker automatically because pocket shapes, yoke, waistband construction, grain direction, size ratio, fabric defects and marker nesting affect final consumption.
How the estimate works
The calculator approximates the upper body and both legs from your garment measurements. It then adds area for waistband/pockets/fly, seam allowance, adjusts for marker efficiency and shrinkage, and divides the required pattern area by the usable fabric width.
When to use it
Use this for early costing, fabric booking and GGD planning when you have a measurement specification but do not yet have a finalized CAD marker. Once an approved marker is available, the marker consumption should replace this estimate for bulk purchasing.
Frequently asked questions
Are waist and hip full circumference?
No. This version expects flat/half measurements. For example, a 33 cm flat waist is approximately 66 cm around before considering garment construction and ease.
Why does marker efficiency matter?
Pattern pieces cannot normally occupy 100% of the fabric rectangle. Empty spaces between pieces increase linear fabric consumption.
Can I use it for baggy and wide-leg jeans?
Yes. Enter the actual thigh, knee and bottom measurements. Wider measurements increase the calculated pattern area and therefore the estimated consumption.