Garments, merchandising, Supplliers And Traders
Fabric GSM Calculator
Weigh a fabric swatch of known size and get its GSM (grams per square meter) instantly.
Formula used
A standard round GSM cutter produces a 100 sq cm sample — if you're using one, enter 10cm × 10cm (or the equivalent for your cutter's diameter) as the length and width.
Frequently asked questions
What is GSM in fabric?
GSM stands for grams per square meter — a standard measure of fabric weight and density used across the garment industry. Higher GSM generally means a heavier, thicker fabric.
How do you calculate fabric GSM manually?
Cut a swatch of known size, weigh it in grams, divide by the swatch's area in square centimeters, then multiply by 10000. A standard round GSM cutter produces a 100 sq cm sample, which simplifies the math.
Why does GSM matter for garment costing?
GSM directly affects fabric weight per garment, which feeds into fabric consumption and cost calculations. Checking actual GSM against a supplier's stated GSM helps catch costing errors before an order is placed.