A2 size

420 × 594 mm · 16.54 × 23.39 in · 1190.6 × 1683.8 pt

Where it comes from

Half of A1: the A1 sheet's long side (841 mm) halves and rounds down to 420 mm — ISO 216's halve-and-floor rule.

Derived from the ISO 216 construction — no lookup required, only arithmetic.

Pixels at print resolutions

DPIPixels (portrait)Typical use
721191 × 1684legacy screens
961587 × 2245CSS reference
1502480 × 3508everyday print
3004961 × 7016quality print
6009921 × 14031fine art / line work

The family

  • Fold A1 in half and you're holding A2.
  • Fold A2 in half and you get A3 — two of those side by side rebuild this sheet.
  • Area: 0.2495 — an 80 gsm sheet weighs 19.96 g.