US to Metric Paper
Basis Weight Conversion Chart

While US paper weight is determined on varying basis according to paper type, the paper basis weight system used in China Printing follows the global metric standard, as shown below.

They will help you to get familiar with our paper stocks.
International (grams/square meter, gsm) to US weight (pounds of a ream for a basis weight category, #):

International(gsm)		US(#,lb)
offset paper	Art paper	text weight	cover weight
60 gsm	60 gsm	41#
70 gsm		47#
80 gsm	80 gsm	54#
90 gsm		61#
100 gsm		68#
	105 gsm	71#
120 gsm		81#
	128 gsm	86#
140 gsm		95#
	157 gsm	106#	58#
	210 gsm	142#	78#
	250 gsm	169#	92#
	300 gsm		111#
	350 gsm		129#

Us text weight (#,lb) to International (gsm) weight: US text weightInternational40#59 gsm50#74 gsm60#89 gsm70#104 gsm80#118 gsm90#133 gsm100#148 gsm

Us text weight (#,lb) to International (gsm) weight: US cover weightInternational60#162 gsm70#189 gsm80#216 gsm90#243 gsm100#270 gsm

Generally, the heavier the paper is the thinker the paper is. 80# cover stock (216gsm) is twice as thick as 80# text paper (118gsm).