Weight equivalence table The following table shows equivalent weights for different grades of paper. A boldface type value indicates a commonly available standard weight for that grade. Shaded boxes indicate a commonly available standard weight for that grade. Note Text and book grades marked with an asterisk (*) actually calculate to 51, 61, 71, and 81 but are rounded to standard book or text weights of 50, 60, 70, and 80. Table 10.
Weight equivalence table 30 Printer description EN Bond weight (17 by 22 inches) Book/text weight (25 by 38 inches) Cover weight (20 by 26 inches) Bristol weight (22.5 by 28.5 inches) Index weight (25.5 by 30.5 inches) Tag weight (24 by 36 inches) Metric weight 16# 41# 22# 27# 33# 37# 60 g/m2 17# 43# 24# 29# 35# 39# 64 g/m2 20# 50# * 28# 34# 42# 46# 75 g/m2 21# 54# 30# 36# 44# 49# 80 g/m2 24# 60# * 33# 41# 50# 55# 90 g/m2 27# 68# 37# 45# 55# 61# 100 g/m2 28# 70# * 39# 49# 58# 65# 105 g/m2 29# 74# 41# 50# 61# 68# 110 g/m2 32# 80# * 44# 55# 67# 74# 120 g/m2 36# 90# 50# 62# 75# 83# 135 g/m2 39# 100# 55# 67# 82# 91# 148 g/m2 40# 101# 55# 68# 83# 92# 150 g/m2 43# 110# 60# 74# 90# 100# 163 g/m2 45# 115# 63# 77# 94# 104# 170 g/m2 47# 119# 65# 80# 97# 108# 176 g/m2 51# 128# 70# 86# 105# 117# 190 g/m2 53# 134# 74# 90# 110# 122# 199 g/m2 54# 137# 75# 93# 113# 125# 203 g/m2 58# 146# 80# 98# 120# 133# 216 g/m2 65# 165# 90# 111# 135# 150# 244 g/m2 66# 169# 92# 114# 138# 154# 250 g/m2 67# 171# 94# 115# 140# 155# 253 g/m2 70# 178# 98# 120# 146# 162# 264 g/m2 72# 183# 100# 123# 150# 166# 271 g/m2