Find the dimensions and formats of A3 paper and other paper sizes in different systems, such as mm, US, envelope and international. Compare A3 with other sizes and see examples of A3 paper products. A3 Paper Size , Dimensions and Format from the A Series which can be found in mm, cm, m, inches, picas, pixels and points. Learn about the A series paper sizes defined by the ISO 216 standard, from A0 to A13. Find out the millimetre and inch measurements of each size , and how they are related by a square root of two ratio. A3 paper is a larger format commonly used in design, printing, and various professional fields. Its dimensions offer more space compared to the standard A4 size , making it ideal for projects that require greater visual impact. But how big is A3 paper exactly, and what are its primary applications? Let's explore.
