Paper Size comparison tool
A
A1
594 x 841 mm
A
A2
420 x 594 mm
What is the difference between A1 and A2?
The primary difference between A1 and A2 is that A1 is taller and wider (594 × 841 mm) compared to A2 (420 × 594 mm).
In terms of surface area, A1 is 100.2% larger than A2.
An A1 piece of paper measures 594 × 841 mm or 23.4 × 33.1 inches. Cutting it in half will create two A2 sheets of paper. A1 is part of the A series.
An A2 piece of paper measures 420 × 594 mm or 16.5 × 23.4 inches. Cutting it in half will create two A3 sheets of paper. A2 is part of the A series.