A3: + Paper Size

A3+ Paper Size, Dimensions and Format from the A Series which can be found in mm, cm, m, inches, picas, pixels and points. A3 Paper is a highly versatile paper size that can be used for large brochures, small posters, and advertisements. A3 Paper is half the size of the A2 Paper. A3 Paper has a width of 11.69” (297 mm) and height of 16.54” (420 mm). The surface area of A3 Paper is 1.35 ft2 (.125 m2). Learn all about A3 size paper, from why it’s useful and who uses it, to how it prints. Discover A3 paper dimensions and more today with Adobe. A3 is a paper size that is typically used for drawings, diagrams and large tables. It is also frequently used in laser printers to output two A4 pages as a spread. Dimensions A3 measures 297 × 420 millimeters or 11.69 × 16.54 inches. In PostScript, its dimensions are rounded off to 842 × 1190 points. Part of the ISO 216 standard A3 is part of a set or range of page sizes, called the ISO A or ISO 216 standard. This international standard is based on the German DIN 476 standard from 1922 ...