This 'A' paper size to pixels converter can convert all those paper sizes to pixels. However, there are still lots of variants of that paper 'A' series according to ISO 216 international paper size standard. In 1991, it was split into DIN 476-1 for the A and B formats and 476-2 for the C series. The most popular size of this paper standard is A4, you're probably familiar of that paper size. The German standard DIN 476 was published on 18 August 1922 and is the original specification of the A, B and C sizes. The tolerances specified in the standard are This interesting arrangement of dimensions is also very useful-not only it forms a geometric progression with easy to remember formulae, it also has that each consecutive pair of values (like a sliding window of size 2) will automatically correspond to the dimensions of a standard paper format in the series.
Each of the three geometric progressions (corresponding to the three series A, B, C) is formed by all possible paper dimensions (length and width) of the series arranged in decreasing order. There are 11 sizes in the A series, designated A0–A10, all of which have an aspect ratio of a b = 2 ≈ 1.41421 … variables are the distinct first terms in the three geometric progressions of the same common-ratio equal to the square root of two. A size chart illustrating the ISO A series.
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