Size of A1

This is the second largest paper in the A series. The A1 paper is the same size as half A0, two A2 or four A3.

Size of paper A1

  • A1 paper size in millimeters is 594 x 841 mm.
  • 59.4 x 84.1 centimeters.
  • A1 paper size in inches is 23.375 x 33.125 in.