A0 and A1 are used for Technical drawings and posters.
A0 paper is used primarily for large format printing such as posters, architectural drawings, engineering diagrams, and other visual displays that require a lot of space to convey information effectively. Its dimensions are 841 x 1189 mm (33.1 x 46.8 inches), making it ideal for projects that need to be seen from a distance.
A0 size paper is the largest standard size in the ISO 216 international paper size standard. It measures 841 mm × 1189 mm (33.1 in × 46.8 in) and has an area of about 1 square meter. It is commonly used for large posters, technical drawings, and architectural plans.
A0 paper is 46.8 x 33.1 in.
In the standardised paper measurement system A0 is 1189 millimetres x 841 millimetres.
16 pages of A4 fit into an A0
841mm × 1189mm This comes from a paper by Markus Kuhn at Cambridge University: http://www.cl.cam.ac.uk/~mgk25/iso-paper.html
1 sheet of ISO standard 1 m2 (A0 paper) weighs 80 gr. There are 16 sheets of A4 paper in a sheet of A0. Therefore one sheet weighs 5 gr. Alex Cicelsky
Paper is measured along a scale preceded by A. A0 is 841mm by 1189mm, fold and cut in half, you will have A1 and so on.
210 × 297 mm. A4 is the standard size for most countries, excluding the US, Canada and a few others.A4 is one of a series of paper sizes, starting with A0. A0 has an area of 1 m². If you fold A0 into two you get A1, and so on.All sizes in the A-series have the same ratio of length/width, which is the square root of 2.
The standard size of paper used for computer printouts and other uses is A4. A4 paper is 210 × 297 mm. It has an area of 1/16 metres². It is one of a series of paper sizes starting with A0, which has an area of 1 square metre.
The largest paper size commonly used is the ISO A0 size, which measures 841 x 1189 mm (33.1 x 46.8 inches). It is typically used for large format printing and posters.
1189mm x 841mm
A0