Equivalent Weights for Printer Paper

This table provides selected equivalents (in pounds) for a ream of paper of a given type (listed at the top of each column) and basis weights listed below. Metric equivalents are also provided.

The yellow highlighted text are the commonly available weights for the given paper type.

Book/Offset 25 × 38	Bond/Ledger 17 × 22	Card Stock / Cover 20 × 26	Bristol 22½ × 28½	Index 25½ × 30½	Tag 24 × 36	Metric g/m²
30	12	16	20	25	27	44
33	13	18	22	27	30	49
40	16	22	27	33	36	59
41	16	22	27	33	37	60
45	18	25	30	37	41	67
50	20	27	34	41	46	74
51	20	28	34	42	46	75
60	24	33	41	49	55	89
61	24	33	41	50	55	90
70	28	38	47	57	64	104
71	28	39	48	58	65	105
80	32	44	54	66	73	118
81	32	45	55	67	74	120
90	35	49	61	74	82	133
91	36	50	62	75	83	135
99	39	54	67	81	90	147
100	39	55	68	82	91	148
102	40	56	69	83	92	150
110	43	60	74	90	100	162
119	47	65	80	97	108	176
120	47	66	81	98	109	178
134	53	74	91	110	122	199
137	54	75	93	113	125	204
146	58	80	99	120	133	216
148	58	81	100	121	135	219
164	65	90	111	135	150	243
165	65	90	111	135	150	244
171	65	94	116	140	156	253
178	70	97	120	146	162	263
183	72	100	123	150	166	271
192	76	105	130	158	175	285
201	80	110	136	165	183	298
207	82	114	140	170	189	307
208	82	114	140	170	189	307
220	87	120	148	180	200	326
237	93	130	160	194	216	351
238	94	130	160	194	216	352
275	108	150	186	225	250	407
292	115	160	197	239	266	433