User Guide

Table 1-30 Paper weight equivalents
U.S.
postcard
1
thickness
(mm)
U.S. bond
weight (lb)
U.S. text/
book
weight
2
(lb)
U.S. cover
weight (lb)
U.S. Bristol
weight (lb)
U.S. index
weight (lb)
U.S. tag
weight (lb)
Metric
weight (g/
m
2
)
16
3
41 22 27 33 37
60
3
17 43 24 29 35 39
64
3
20
3
50
23
28 34 42 46
75
3
21 54 30 36 44 49
80
3
24
3
60
23
33 41 50 55
90
3
27 68 37 45 55 61
100
3
28
3
70
23
39 49 58 65 105
29 74 41 50 61 68
110
3
32
3
80
23
44 55 67 74
120
3
36
3
90
50
3
62 75 83
135
3
0.18 39
100
3
55
67
3
82 91 148
40 101 55 68 83 92
150
3
0.20 43 110
60
3
74
90
3
100
3
163
45 115 63 77 94 104
170
3
0.23 47 119
65
3
80 97 108 176
51 128 70 86 105 117
190
3
53 134 74 90
110
3
122 200
54 137 75 93 113
125
3
203
58 146
80
3
98 120 133 216
65 165 90 111 135 150 244
66 169 92 114 138 154 250
67 171 94 115
140
3
155 253
70 178 98
120
3
146 162 264
72 183
100
3
123 150 166 271
1
U.S. postcard measurements are approximate. Use for reference only.
2
Text and book grades actually calculate out to 51, 61, 71, and 81, but are standardized to book/text weights of 50, 60, 70,
and 80.
3
Standard weight for the grade.
Media specifications 33