USA EQUIVALENT PAPER WEIGHTS
In reams of 500 sheets
Book
Bond
Cover
Bristol
Index
News-print
TAG
Grammage
CALIPER
25 X 38
17 X 22
20 X 26
22 1/2X28 1/2
25 1/2 X 30 1/2
24 X 36
24 X 36
g/m2
Inch
Point
mm
30
44
40
59
0.0032
3.2
0.081
45
67
0.0036
3.6
0.092
50
74
0.0038
3.8
0.097
60
89
0.0048
4.8
0.120
70
104
0.0058
5.8
0.147
80
118
0.0061
6.1
0.155
90
133
0.0062
6.2
0.157
100
148
0.0072
7.2
0.183
120
178
0.0078
7.8
0.198
13
49
16
61
0.0032
3.2
0.081
20
75
0.0038
3.8
0.097
24
90
0.0048
4.8
0.120
28
105
0.0058
5.8
0.147
32
120
36
135
0.0068
6.8
0.173
40
151
0.0073
7.3
0.185
50
135
00.068
6.8
0.173
60
163
0.0074
7.4
0.188
65
176
0.0078
7.8
0.198
80
216
0.0092
9.2
0.234
90
243
0.0095
9.5
0.241
100
271
0.0110
11
0.289
110
298
130
352
160
433
67
147
80
176
100
219
120
263
140
307
0.011
11
0.275
160
351
90
163
0.0074
7.4
0.188
110
203
0.0085
8.5
0.216
140
252
0.0100
10
0250
170
328
0.0140
14
0.356
220
398
22
36
28
46
30
49
32
52
34
55
35
57
100
163
0.0074
7.4
0.188
125
203
0.0090
9.0
0.229
150
244
0.0095
9.5
0.241
175
284
0.0130
13
0.330
200
326
0.0150
15
0.380
250
407
300
488
To use the Weight Conversion tool, please select a Type of Paper
from the pull down menu, then enter a value in pounds and hit
calculate. To reverse the calculation simply select
"gsm2 ->lbs" and enter a gsm value.
Point to Paper Weight Conversion (This is true for typical uncoated
paper and assume 12 Pt. thick is equivalent to 270 gsm)
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