The main uses of A, B and C paper sizes is their application to a particular print project. For example the most commonly used paper size is A4 (297mm x 210mm) and the next paper size is A5 (210mm x 148.5mm) which is equal to half of the A4 dimensions. A1, A2, A3, A4) measurement is determined by halving the dimensions of the preceding one.
There are a lot of mathematical fomulas behind the workings of A, B and C paper sizes but the underlying feature is that any successive paper size (eg. Before the adoption of this standard, paper sizes did not fit into any formal system and did not work with metric units and it wasn’t until 1975 when so many countries were using this paper sizing system that the International Standard was formalised. International Standard (ISO 216) specifies paper sizes used in most countries in the world today (except for the US and Canada which uses its own sizing standard) and the development of these paper size ratios can be dated back to the Eighteenth Century. The following is a list of the relevant dimensions.Įveryone uses standard paper size terms but do you they understand what they mean and why?
Different paper sizes are used for different things From your standard A4 magazine down to a business card which is typically around 85mm x 55mm.
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