A-8 Specifications  
EN
Paper Weight Equivalence Table
Use this table to determine approximate equivalent points in weight 
specifications other than U.S. bond weight. For example, to 
determine the equivalent of 20 lb U.S. bond weight paper in U.S. 
cover weight, locate the bond weight (in row 3, second column) and 
scan across the row to the cover weight (in the fourth column). The 
equivalent is 28 lb.
Shaded areas indicate a standard weight for that grade.
1. U.S. Post Card measurements are approximate. Use for reference only.
U.S. 
Post 
Card
1
 
thick-
ness
(mm)
U.S. 
Bond 
Weight 
(lb)
U.S. 
Text/
Book 
Weight 
(lb)
U.S. 
Cover 
Weight 
(lb)
U.S. 
Bristol 
Weight 
(lb)
U.S. 
Index 
Weight 
(lb)
U.S. 
Tag 
Weight 
(lb)
Europe 
Metric 
Weight 
(g/m
2
)
Japan 
Metric 
Weight 
(g/m
2
)
1 16 41 22 27 33 37 60 60
2 17432429353964
64
3
20 50 28 34 42 46 75 75
4 215430364449
80 80
5 22563138465181
81
6
24 60 33 41 50 55 90 90
7 276837455561
100 100
8
28 70 39 49 58 65 105 105
9
32 80 44 55 67 74 120 120
10 34 86 47 58 71 79 128
128
11
36 90 50 62 75 83 135 135
12
.18 39 100 55 67 82 91 148 148
13 .19 42 107 58 72 87 97 157
157
14
.20 43 110 60 74 90 100 163 163
15 .23 47 119
65 80 97 108 176 176
16 53 134 74 90
110 122 199 199