Fabric Yield Calculator
How Many Garments Actually Come Off a Roll
A roll of fabric's total area rarely divides evenly into the pieces cut from it, which means fabric yield planning always involves a leftover remainder alongside the whole-unit count. Knowing that remainder matters as much as the yield number itself — it's the difference between fabric that's genuinely wasted and fabric that can be pooled with other leftover cuts.
The Formula
Yield = floor(Total Fabric Area ÷ Area per Garment)
The yield is rounded down (floored) to a whole number, since a partial garment can't be cut from the leftover fabric. The remainder after that whole-unit cut is reported separately as leftover area.
Where This Matters
- Production planning — converting a fabric order's total area into an expected garment count is a standard step before committing to a cutting plan.
- Comparing roll widths — a wider roll at the same total area can sometimes yield more garments per roll depending on how the per-garment area is laid out, which this calculator can help sanity-check.
- Estimating waste — tracking leftover area across multiple rolls highlights whether a cutting layout is leaving unusually high waste.
Worked Example
| Step | Value |
|---|---|
| Total fabric area (10 × 1.5) | 15 m² |
| Yield (floor(15 ÷ 1.2)) | 12 garments |
| Leftover area | 0.6 m² |
This is an area-based estimate; actual cutting yield can be lower once pattern shape, grain direction, and layout efficiency are accounted for.
How to Use This Calculator
- Enter Fabric Length in meters.
- Enter Fabric Width in meters.
- Enter Area per Garment in square meters (the fabric area consumed by one unit).
- Select Calculate to see the whole-unit yield and leftover fabric area.
Related Calculations
Once yield is known, budget the order with the Fabric Cost Calculator, or check the roll's total weight with the Fabric Weight Calculator.