A0
A0 is a paper size that is typically used for technical drawings and posters.
Dimensions
A0 measures 841 × 1189 millimeters or 33.11 × 46.81 inches. In PostScript, its dimensions are rounded off to 2384 × 3370 points.
Part of the ISO 216 standard
A0 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. A0 is actually often referred to as DIN A0. The Japanese have adopted the same range of paper sizes in their JIS P 0138-61 standard.
By folding an A0 in two along its shortest side, you create an A1 document. Fold once more and you get an A2 sized document. This way a range of paper sizes is created from A0 (which has a surface of one square meter) to A10. The height/width ratio remains constant for all sizes: 1:1.41 or the square root of 2. The dimensions always get rounded to the nearest millimeter.
Alternatives
The American alternative to A0 is the ANSI E-size, which is part of the ANSI/ASME Y14.1 standard. It measures 864 × 1118 mm or 34 × 44″.
Other sources of information
An elaborate yet easy to read page on the ISO 216 standard can be found here.
Loading ...
Thanks this was a useful quick find. Then there is the debate about legal A4 size which is slightly different again. We scan small to large sizes quite often but its difficult when people use both inches and cm as example measurements. One system should be enough!
I don’t think there is such as beast as ‘legal A4′.
I think most people prefer to hear this in inches as mm sounds too daunting.
Millimeters and centimeters are more precise which is why they should be the standard. And they are easily divisible. Fractions are for cake!