Textile & Fabric Weight Converter
GSM aka g/m2 = grams per square meter
oz/yd2 = ounces per yard squared
1 gram = 0.03527 ounces
1 lb = 16 oz = 435.59237 grams
1 inch = 2.54 cm
1 yd = 36 inches = 0.9144 m = 91.44 cm
There is an easy way to convert gsm to oz/yd2.
Divide the gsm by 33.906 - really that is all.
To determine gsm from oz/yd2 you do the reverse - multiple by 33.906.
If it helps, this is what the formulas are based upon:
1 oz = 28.3495231 grams
1 yard = 0.9144 meters
1 yard squared = 0.9144 m x 0.9144 m = 0.83612736 meters squared
1 oz/yd2 = 28.3495231g/.83612736 m2 = 33.90574744 g/m2
Rounded up to three decimal places it is 33.906
Question : If a fabric is 5.5oz/sq yard, how many the weight is in grams/sq meter ?
Answer : 5.5 oz/sqyd x 33.906 = 186.483 gm/sqm