B10 size
31 × 44 mm · 1.22 × 1.73 in · 87.9 × 124.7 pt
Where it comes from
Half of B9: the B9 sheet's long side (62 mm) halves and rounds down to 31 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 | 88 × 125 | legacy screens |
| 96 | 117 × 166 | CSS reference |
| 150 | 183 × 260 | everyday print |
| 300 | 366 × 520 | quality print |
| 600 | 732 × 1039 | fine art / line work |
The family
- Fold B9 in half and you're holding B10.
- Area: 0.0014 m².