Engineering CalculationFabric GSM Calculator - from Cut Sample or Construction
Find fabric weight in grams per square metre from a cut sample, or estimate it from the woven construction, and convert to oz/yd² or g/m.
Open the calculator →Formula
GSM = sample weight (g) / sample area (m²)
With a 100 cm² GSM cutter: GSM = sample weight (g) × 100
Worked example
100 cm² sample weighs 1.45 g
GSM = 1.45 × 100 = 145 g/m²
Where engineers use it
- Grey and finished fabric inspection
- Buyer specification checks
- Costing by fabric weight
How to use
- Click Open the calculator. It runs free in your browser, on desktop or phone.
- Enter your values. Units and typical ranges are shown next to each input.
- Read the result and the step-by-step working, then print or add it to your Project BOQ.
Questions
Can I get GSM from EPI and PPI?
Yes, use the Woven Fabric GSM from Construction calculator in the Textile suite.