GSM (grams per square meter) is a measure of fabric weight. It indicates the weight of the fabric in grams for a one-meter square area.
The formula to convert GSM to ounces per square yard is:
\[ \text{Ounces per Square Yard} = \frac{\text{GSM}}{33.906} \]
Consider a fabric with a GSM of 200:
Using the formula:
\[ \text{Ounces per Square Yard} = \frac{200}{33.906} = 5.90 \text{ oz/yd²} \]
This means the fabric weight is 5.90 ounces per square yard.