Fabric swatch to GSM calculator
Calculate the GSM and oz/sq yard weight of a fabric sample.
Dimension unit
In cm
In cm
Weight unit
In grams
Result
GSM
— g/m²
Ounces per square yard
— oz/yd²
How it works
GSM = weight (g) ÷ area (m²)
oz/sq yard = GSM × 0.02957
Measure a sample of your fabric, weigh it, enter the dimensions, and the calculator does the rest. oz and lb weights are converted to grams before calculating.