Paper weight conversion

[Color Printing Forum Admin]

Text (Basis 25 x 38)

Text    Bond   Cover  Index   GSM
40      16     21     33      60
50      20     27     41      74
60      24     32     49      89
70      28     38     57      104
80      31     43     66      118
90      35     48     74      133
100     39     54     82      148

Cover (Basis 20 x 26)

Cover   Bond   Index   Text   GSM   ~C1S PT
50      36     75      91     135
60      43     90      110    162
65      47     97      119    176     8pt
80      58     120     146    216     10pt
90      65     135     164    243     12pt     
100     72     150     183    270     14pt
110     79     165     201    297
120     87     180     220    324     16pt

Bond (Basis 17 x 22)

Bond    Cover  Index   Text   GSM
16      22     33      41     60
20      28     42      51     75
24      33     50      61     90
28      39     59      71     105
32      45     67      81     120
36      50     75      81     135

Index (Basis 25-1/2 x 30-1/2)

Index   Bond   Cover  Text   GSM
90      43     60     110    163
110     53     74     134    199
140     67     93     171    253
170     82     114    208    307