A7 size
74 × 105 mm · 2.91 × 4.13 in · 209.8 × 297.6 pt
Where it comes from
Half of A6: the A6 sheet's long side (148 mm) halves and rounds down to 74 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 | 210 × 298 | legacy screens |
| 96 | 280 × 397 | CSS reference |
| 150 | 437 × 620 | everyday print |
| 300 | 874 × 1240 | quality print |
| 600 | 1748 × 2480 | fine art / line work |