METRIC CONVERSION TABLE

Listed below is a conversion table showing metric weights in grams per square meter (g/m2) for commonly used basis weights in American or English usage. Note that no basic size is necessary in describing the metric weight, but simply the weight in g/m2. The United States is not at this moment officially on the metric system, but metric weights are currently used elsewhere on the North American continent (Canada has already made the official conversion), and it is anticipated that over a period of the next few years metric weights will come into more common usage in the U.S. This simple table is provided as a familiarization device.

PRESENTLY USED BASIS WEIGHTS IN POUNDS PER 500 SHEETS - BASIC SIZE IN INCHES

BOND
(17 x 22)		BOOK
(25 x 38)		COVER
(20 x 26)		BRISTOL
(23 x 35)		BRISTOL
(22½x28½)		INDEX
(25½ x 30½)		TAG
(24 x 36)		METRIC WEIGHTS
(g/m2)
 20     30
9      34
 24     36
11      41
 30     44
1333    3049
 35     52
15      56
 40     59
16      60
      4065
 45     67
 50     74
20      75
      5081
 60     89
24      90
      6098
 70     104
28      105
  40    108
      70114
 80     118
32      120
      80130
 90     133
36 50    135
      90146
    67  147
 100     148
40      150
  60    162
     90100163
   10080  175
  65    176
 120     178
  70    189
    90  197
     110 199
      125203
  80    216
   125   218
    100  219
      150244
     140 253
   150   262
    120  263
  100    270
      175285
   175   306
    140170 307
      200325
   200   349
    160  351
  130    352
    180  395
     220 398
      250407
    200  438

CONVERSION FORMULAS

Given the metric weight (g/m2), convert to basis weight in pounds:
Metric weight x Basis are in inches=Basis weight in pounds
1406.5
Given the basis weight in pounds, convert to metric weight:
Basis weight pounds x 1406.5=g/m2
Basis area inches
Round off result to closest even number.