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USA to Metric Paper Weight Conversion

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
30lb	12lb	16lb	20lb	25lb	27lb	44
40lb	16lb	22lb	27lb	33lb	36lb	59
45lb	18lb	25lb	30lb	37lb	41lb	67
50lb	20lb	27lb	34lb	41lb	46lb	74
60lb	24lb	33lb	41lb	49lb	55lb	89
70lb	28lb	38lb	47lb	57lb	64lb	104
80lb	32lb	44lb	54lb	66lb	73lb	118
90lb	35lb	49lb	61lb	74lb	82lb	133
100lb	39lb	55lb	68lb	82lb	91lb	148
120lb	47lb	66lb	81lb	98lb	109lb	178

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
33lb	13lb	18lb	22lb	27lb	30lb	49
41lb	16lb	22lb	27lb	33lb	37lb	60
51lb	20lb	28lb	34lb	42lb	46lb	75
61lb	24lb	33lb	41lb	50lb	55lb	90
71lb	28lb	39lb	48lb	58lb	65lb	105
81lb	32lb	45lb	55lb	67lb	74lb	120
91lb	36lb	50lb	62lb	75lb	83lb	135
102lb	40lb	56lb	69lb	83lb	92lb	150

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
91lb	36lb	50lb	62lb	75lb	83lb	135
110lb	43lb	60lb	74lb	90lb	100lb	162
119lb	47lb	65lb	80lb	97lb	108lb	176
146lb	58lb	80lb	99lb	120lb	133lb	216
164lb	65lb	90lb	111lb	135lb	150lb	243
183lb	72lb	100lb	123lb	150lb	166lb	271
201lb	79lb	110lb	136lb	165lb	183lb	298
238lb	94lb	130lb	160lb	194lb	216lb	352
292lb	115lb	160lb	197lb	239lb	266lb	433

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
99lb	39lb	54lb	67lb	81lb	90lb	147
119lb	47lb	65lb	80lb	97lb	108lb	176
148lb	58lb	81lb	100lb	121lb	135lb	219
178lb	70lb	97lb	120lb	146lb	162lb	263
207lb	82lb	114lb	140lb	170lb	189lb	307
237lb	93lb	130lb	160lb	194lb	216lb	351

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
110lb	43lb	60lb	74lb	90lb	100lb	163
134lb	53lb	74lb	91lb	110lb	122lb	199
171lb	67lb	94lb	115lb	140lb	156lb	253
208lb	82lb	114lb	140lb	170lb	189lb	307

Conversion Chart

Book	Bond	Cover	Bristol	Index	Tag	Metric
25 x 38	17 x 22	20 x 26	22½ x 28½	25½ x 30½	24 x 36	g/m²
110lb	43lb	60lb	74lb	90lb	100lb	163
137lb	54lb	75lb	93lb	113lb	125lb	204
165lb	65lb	90lb	111lb	135lb	150lb	244
192lb	76lb	105lb	130lb	158lb	175lb	285
220lb	87lb	120lb	148lb	180lb	200lb	326
275lb	108lb	151lb	186lb	225lb	250lb	407