How do you calculate fabric requirement with the help of gsm?

Answer 1

how to calculate gsm of woven fabric

Answer 2

You’ve heard of a 50/50 or a 80/20 t-shirt. 50/50 means 50% cotton and 50% polyester or 80% cotton and 20% polyester, but have you ever seen the gsm listed and wondered what that meant? Simply put; that’s the weight of the fabric.

But first, it’s important to know that GSM also has some other acronyms that do mean the same; let’s start with those.

GSM (also known as gm/2) = grams per square meter and is the metric measurement of the weight of a fabric.

Metric measurements are generally the most common place but some clothing items are still marked in Imperial weights (OZ or oz/yd2 = ounces per yard squared)

The important thing to state here is that all of the terms above are measurements of weight, specifically the fabric weight when talking clothing. For example a t-shirt may be listed as 185gsm and another may be listed as 5.5oz the outcome is that these are basically the same as 5.5oz = 186gsm

You can work out any conversion of OZ & GSM by using the following calculation

5.5oz x 33.906 = 186.48gsm

185gsm / 33.906 = 5.45oz