|
The following table shows the width and height of all ISO A and B
paper formats, as well as the ISO C envelope formats.
| A Series Formats | B Series Formats | C Series Formats
|
|---|
| 4A0 | 1682 × 2378 | – | – | – | –
| | 2A0 | 1189 × 1682 | – | – | – | –
| | A0 | 841 × 1189 | B0 | 1000 × 1414 | C0 | 917 × 1297
| | A1 | 594 × 841 | B1 | 707 × 1000 | C1 | 648 × 917
| | A2 | 420 × 594 | B2 | 500 × 707 | C2 | 458 × 648
| | A3 | 297 × 420 | B3 | 353 × 500 | C3 | 324 × 458
| | A4 | 210 × 297 | B4 | 250 × 353 | C4 | 229 × 324
| | A5 | 148 × 210 | B5 | 176 × 250 | C5 | 162 × 229
| | A6 | 105 × 148 | B6 | 125 × 176 | C6 | 114 × 162
| | A7 | 74 × 105 | B7 | 88 × 125 | C7 | 81 × 114
| | A8 | 52 × 74 | B8 | 62 × 88 | C8 | 57 × 81
| | A9 | 37 × 52 | B9 | 44 × 62 | C9 | 40 × 57
| | A10 | 26 × 37 | B10 | 31 × 44 | C10 | 28 × 40
|
The allowed tolerances are ±1.5 mm for dimensions up to 150
mm, ±2 mm for dimensions above 150 mm up to 600 mm, and ±3
mm for dimensions above 600 mm. Some national equivalents of ISO 216
specify tighter tolerances, for instance DIN 476 requires ±1 mm,
±1.5 mm, and ±2 mm respectively for the same ranges of
dimensions.
Application examples
The ISO standard paper size system covers a wide range of formats, but
not all of them are widely used in practice. Among all formats, A4 is
clearly the most important one for daily office use. Some main
applications of the most popular formats can be summarized as:
| A0, A1 |
technical drawings, posters |
| A1, A2 |
flip charts |
| A2, A3 |
drawings, diagrams, large tables |
| A4 |
letters, magazines, forms, catalogs, laser printer and
copying machine output |
| A5 |
note pads |
| A6 |
postcards |
| B5, A5, B6, A6 |
books |
| C4, C5, C6 |
envelopes for A4 letters: unfolded (C4), folded
once (C5), folded twice (C6) |
| B4, A3 |
newspapers, supported by most copying machines
in addition to A4 |
| B8, A8 |
playing cards |
All dimensions
are in millimeters:
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