Free Garment Weight and Fabric Requirement Calculator Online
Use this garment weight calculator to estimate garment weight from GSM and fabric consumption, calculate fabric requirement from target garment weight, and run quick garment presets when you do not have full marker data. The tools are suitable for knit and woven apparel costing, sampling, and production planning.
Bookmark this page and keep it open while you cost T shirts, hoodies, jeans, shirts, dresses, and more.
Garment weight calculator and why garment weight matters
Garment weight is the total mass of a finished garment measured in grams or kilograms. It affects how the garment feels on the body, how it drapes, and how customers perceive quality. For merchandisers and costing teams, garment weight is also linked directly to fabric consumption and fabric cost per piece.
A clear garment weight calculator helps you move between GSM, fabric width, fabric length per garment, and final garment weight. This is important when you compare options from different mills or when a buyer targets a certain weight range for a style.
Fabric requirement calculator and the link between GSM, width, and consumption
Fabric requirement per garment depends on three main variables:
- Fabric GSM, which expresses grams per square meter.
- Fabric width, which controls how much area you get per running meter or yard.
- Net fabric area consumed by the pattern and marker for one garment.
Once you know GSM and the net area per garment, you can estimate garment weight. If you know garment weight and GSM, you can work backwards to estimate the area and then the fabric length required per piece and per batch. This fabric requirement calculator automates these steps so you can focus on negotiation and planning instead of manual math.
How to calculate garment weight from GSM and fabric consumption
The basic formula for garment weight is simple: garment weight in grams equals GSM multiplied by the fabric area in square meters used for that garment. Area is width in meters multiplied by length in meters. The first mode on this page applies this formula directly and shows both per piece and total batch weight.
Fabric consumption per garment and quick preset estimates
In reality, fabric consumption per garment comes from pattern and marker efficiency. Before those are ready you can still estimate likely consumption based on garment type and size. The quick presets mode on this page uses internal factors for T shirts, hoodies, jeans, shirts, dresses, and shorts to give a starting point for costing discussions.
Garment weight and fabric requirement calculator FAQ
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How do I calculate garment weight from GSM and fabric consumption?
Multiply fabric GSM by the fabric area in square meters that is used per garment. Area is fabric width in meters multiplied by fabric length per garment in meters. The first calculator on this page performs the conversion for you and returns garment weight per piece and for the full batch. -
Can I use this garment weight calculator for knits and wovens?
Yes. The formulas work for both knitted and woven fabrics, as well as many nonwoven and technical textiles. The key point is that GSM, width, and fabric length per garment are correct for the fabric and marker you are using. -
How accurate is this garment weight calculator?
The math is exact for the values you enter. Final accuracy depends on how realistic your GSM and fabric consumption inputs are. For critical orders you should always confirm numbers against real patterns, markers, and trial cuts before final booking.
