Paper Basis Weight

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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Type of Paper
lbs
Grams/Square meter

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