A3 size
297 × 420 mm · 11.69 × 16.54 in · 841.9 × 1190.6 pt
Where it comes from
Half of A2: the A2 sheet's long side (594 mm) halves and rounds down to 297 mm — ISO 216's halve-and-floor rule.
Derived from the ISO 216 construction — no lookup required, only arithmetic.
Pixels at print resolutions
| DPI | Pixels (portrait) | Typical use |
|---|---|---|
| 72 | 842 × 1191 | legacy screens |
| 96 | 1123 × 1587 | CSS reference |
| 150 | 1754 × 2480 | everyday print |
| 300 | 3508 × 4961 | quality print |
| 600 | 7016 × 9921 | fine art / line work |