swim communications A2 Paper Size

view table of A2 sizesWhat is A2?

A2 is a commonly used standard of paper. The ISO 216 standard defines A2 size to be 420mm × 594mm, which is also exactly double the size of an A3.

A2 sized paper is frequently used to print posters, large folded brochures and advertisements, diagrams, drawings and other artwork.

In the ISO paper size system, the height-to-width ratio of all pages is the square root of two. In other words, the width and the height of a page relate to each other like the side and the diagonal of a square. This aspect ratio is especially convenient for a paper size. If you put two such pages next to each other, or equivalently cut one parallel to its shorter side into two equal pieces, then the resulting page will have again the same width/height ratio.

  • A2 is twice the size of A3, and four times the size of A4
  • A2 is eight times the size of A5, and sixteen times the size of A6.
  • A2 is half the size of A1, and one quarter the size of A0.


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