B9 size
44 × 62 mm · 1.73 × 2.44 in · 124.7 × 175.7 pt
Where it comes from
Half of B8: the B8 sheet's long side (88 mm) halves and rounds down to 44 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 | 125 × 176 | legacy screens |
| 96 | 166 × 234 | CSS reference |
| 150 | 260 × 366 | everyday print |
| 300 | 520 × 732 | quality print |
| 600 | 1039 × 1465 | fine art / line work |