EMS TO RUNNING INCH
In estimating the amount of matter set, the following table of type measurement will be found useful. It shows the number of ems in a running inch, in columns from 10 to 30 picas wide, in seven different sizes of type. The figures across the top denote the width of page or column in picas, and the figures below denote the number of ems to the column inch in the various sizes designated in the column to the left.
WIDTH OF COLUMNS IN PICAS
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
| 6 point | 240 | 264 | 288 | 312 | 336 | 360 | 384 | 408 | 432 | 456 | 480 |
| 7 point | 177 | 194 | 212 | 229 | 247 | 265 | 282 | 300 | 318 | 335 | 353 |
| 8 point | 135 | 148 | 162 | 175 | 189 | 202 | 216 | 229 | 243 | 256 | 270 |
| 9 point | 107 | 117 | 128 | 139 | 149 | 160 | 171 | 181 | 192 | 203 | 213 |
| 10 point | 86 | 95 | 104 | 112 | 121 | 129 | 138 | 147 | 155 | 164 | 173 |
| 11 point | 71 | 79 | 86 | 93 | 100 | 107 | 114 | 121 | 128 | 136 | 143 |
| 12 point | 60 | 66 | 72 | 78 | 84 | 90 | 96 | 102 | 108 | 114 | 120 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
| 6 point | 504 | 528 | 552 | 576 | 600 | 624 | 648 | 672 | 696 | 720 |
| 7 point | 371 | 388 | 406 | 424 | 441 | 459 | 477 | 494 | 512 | 529 |
| 8 point | 283 | 297 | 310 | 324 | 337 | 351 | 364 | 378 | 391 | 405 |
| 9 point | 224 | 235 | 246 | 256 | 267 | 277 | 288 | 299 | 309 | 320 |
| 10 point | 181 | 190 | 199 | 207 | 216 | 225 | 233 | 242 | 250 | 259 |
| 11 point | 150 | 157 | 164 | 171 | 178 | 185 | 192 | 200 | 207 | 214 |
| 12 point | 126 | 132 | 138 | 144 | 150 | 156 | 162 | 168 | 174 | 180 |