Paper Thickness Conversion Chart : US Basis Weights vs. Metric GSM.
US Basis Weights |
Caliper |
Metric |
Bond |
Text |
Cover
or
Card
|
Index |
1 Point = 0.001" |
GSM (g/m2 ) |
20 |
50 |
28 |
42 |
3.80 |
75.20 |
24 |
60 |
33 |
50 |
4.80 |
90.30 |
28 |
70 |
39 |
58 |
5.80 |
105.35 |
32 |
80 |
44 |
67 |
|
120.00 |
36 |
90 |
50 |
75 |
6.80 |
135.45 |
39 |
100 |
55 |
81 |
7.20 |
146.73 |
43 |
110 |
60 |
90 |
7.40 |
161.78 |
47 |
120 |
65 |
97 |
8.0 |
176.83 |
54 |
137 |
75 |
113 |
9.00 |
203.17 |
58 |
146 |
80 |
120 |
9.50 |
218.22 |
65 |
165 |
90 |
135 |
10.00 |
244.56 |
67 |
170 |
93 |
140 |
10.50 |
252.08 |
72 |
183 |
100 |
150 |
11.00 |
270.90 |
82 |
208 |
114 |
170 |
14.00 |
308.52 |
93.6 |
|
130 |
200 |
16.0 |
352.00 |