Book	Grammage	CALIPER
25 X 38	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
Bond
17 X 22
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	0.0063	6.3	0.160
36	135	0.0068	6.8	0.173
40	151	0.0073	7.3	0.185
Cover
20 X 26
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
Bristol
22 1/2X28 1/2
57	125	0.007	7	0.0178
67	147	0.009	9	0.0229
80	176	0.010	10	0.254
100	219
120	263
140	307	0.011	11	0.275
160	351
Index
25 1/2 X 30 1/2
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
News-print
24 X 36
22	36
28	46	0.00315	3.15	0.080
30	49	0.00335	3.35	0.085
32	52	0.00374	3.74	0.095
34	55
35	57
TAG
24 X 36
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)

TOP OF THE PAGE


Type of Paper
lbs
Grams/Square meter

	convert pt	to gsm
		to mm