ISO 216:1975 Standard Sizes
The following table shows the width and height of ISO A- and B-series paper formats, as well as the ISO C series envelope formats. The dimensions are in millimeters. Sizes supported by Apple LaserWriter printers are in bold text (not all printers support all sizes).
| A Series Paper | B Series Paper | C Series Envelopes |
| 4A0 | 1682 x 2378 | -- | -- | -- | -- |
| 2A0 | 1189 x 1682 | -- | -- | -- | -- |
| A0 | 841 x 1189 | B0 | 1000 x 1414 | C0 | 917 x 1297 |
| A1 | 594 x 841 | B1 | 707 x 1000 | C1 | 648 x 917 |
| A2 | 420 x 594 | B2 | 500 x 707 | C2 | 458 x 648 |
| A3 | 297 x 420 | B3 | 353 x 500 | C3 | 324 x 458 |
| A4 | 210 x 297 | B4 | 250 x 353 | C4 | 229 x 324 |
| A5 | 148 x 210 | B5 | 176 x 250 | C5 | 162 x 229 |
| A6 | 105 x 148 | B6 | 125 x 176 | C6 | 114 x 162 |
| A7 | 74 x 105 | B7 | 88 x 125 | C7 | 81 x 114 |
| A8 | 52 x 74 | B8 | 62 x 88 | C8 | 57 x 81 |
| A9 | 37 x 52 | B9 | 44 x 62 | C9 | 40 x 57 |
| A10 | 26 x 37 | B10 | 31 x 44 | C10 | 28 x 40 |
ISO standard paper and envelope sizes are not yet widely used in Canada and the United States. However, many paper manufactures and resellers carry ISO stock sizes.
Customary Sizes
The following table shows the width and height of customary paper sizes used in North America. Many, but not all, Apple LaserWriter printers can print at these sizes.
| Paper Size | mm | inches |
| Tabloid/Ledger | 279 x 432 | 11 x 17 |
| US Legal | 216 x 356 | 8.5 x 14 |
| US Letter | 216 x 279 | 8.5 x 11 |
| Folio | 210 x 330 | 8.25 x 13 |
| Executive | 184 x 267 | 7.25 x 10.5 |
| Statement | 140 x 216 | 5.5 x 8.5 |
| Postcard | 100 x 148 | 3.94 x 8.82 |
The following table shows the width and height of customary envelope sizes used in North America and Germany. Many, but not all, Apple LaserWriter printers can print at these sizes.
| Envelope Size | mm | inches |
| DL (DIN Long) | 110 x 220 | 4.33 x 8.67 |
| Comm 10 | 105 x 241 | 4.13 x 9.5 |
| Monarch | 98 x 191 | 3.88 x 7.5 |