SRA1 size

640 × 900 mm · 25.2 × 35.43 in · 1814.2 × 2551.2 pt

Where it comes from

Half of SRA0: the SRA0 sheet's long side (1280 mm) halves and rounds down to 640 mm — ISO 216's halve-and-floor rule.

Source: Markus Kuhn — International standard paper sizes (CC BY 4.0)

Pixels at print resolutions

DPIPixels (portrait)Typical use
721814 × 2551legacy screens
962419 × 3402CSS reference
1503780 × 5315everyday print
3007559 × 10630quality print
60015118 × 21260fine art / line work

The family

  • Fold SRA0 in half and you're holding SRA1.
  • Fold SRA1 in half and you get SRA2 — two of those side by side rebuild this sheet.
  • Area: 0.576 m².
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