The abbreviation GSM stands for grams per square meter. GSM is the internationally accepted unit of measurement of fabric and paper, including in the United States, despite the fact that the use of pounds remains prevalent. Converting pounds to GSM requires a simple calculation.
Converting Pounds to GSM
Multiply the number of pounds by 1.4802 to determine its equivalent GSM. Similarly, multiply the number of GSM by 0.6756 to obtain its equivalent in pounds.
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GSM is often used to measure the weight of paper. A sheet of paper can be looked at as a two dimensional shape with an area, such as square meters. In the US you will still see the weight of paper expressed as pounds, which represents the weight of 500 sheets. Using GSM instead references all weights to the same paper size and is considered a better comparative means of measure.
A square meter is an area of 1 x 1 meter. A meter equals 3.28 feet, therefore a square meter equals 10.75 (3.28 x 3.28) square feet.
A gram is a basic metric unit of weight measurement. A kilogram equals one thousand grams. There are nearly 454 grams in one pound, and approximately 28 grams in one ounce.