The dimensions of the A series paper sizes, as defined by the ISO 216 standard, are given in the table below the diagram in both millimetres and inches (cm measurements can be obtained by dividing mm value by 10). The A Series paper size chart, below left, gives a visual representation of how the sizes relate to each other - for example A5 is half of A4 size paper and A2 is half of A1 size paper. 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 ... Learn about the size , aspect ratio, weight and comparison of A3 paper with other ISO 216 and non-ISO paper sizes. Find out how to fit A3 paper into envelopes and how to print with bleed or magnification factors.
