US paper sizes explained, names and dimensions for letter, legal and other US paper formats in inches and mm.

Paper size refers to standardized dimensions for sheets of paper used globally in stationery, printing, and technical drawing. Most countries adhere to the ISO 216 standard, which includes the widely recognized A series (including A4 paper), defined by a consistent aspect ratio of √2.

ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, which includes the A4, the most commonly available paper size worldwide.

Aug 11, 2021 · This list of the common American and European paper sizes includes the ISO standards, which are used globally. All dimensions are specified in inches, millimeters as well as PostScript points (1/72 inch, always rounded off). The overview covers: ISO page sizes – …

A series paper sizes and dimensions are defined by the ISO 216 international paper size standard. The A series is comman and world wide used paper size. The base A0 size of paper is defined as having an area of 1 m2 and a dimension ratio of 1 to √2.

Mar 11, 2025 · If you're not sure what the difference is between A4 and Letter size paper, or how big an A5 or B5 notebook is, start here. We explain how international paper sizes work and compare common A and B Series paper sizes to Letter size.

ISO 216 sets the standard paper size for most printed documents in Europe and Asia. While the standard describes more than 20 different document sizes, the relationship between them is easy to understand. There are two different standards within ISO 216: the A-series and the B-series. In the A-series, the default paper size is A0, which ...

An explanation of the ISO 216 paper size format standard, including definition of A series paper sizes (A3, A4, A5 etc)

Sep 29, 2023 · Ever wonder what paper product labels like "A4" or "Letter" mean? This simple guide explains all the standard paper sizing systems.

Paper comes in standard sizes based on ANSI and loose paper sizes. ANSI paper sizes run from A to E. Loose paper sizes include the ever-popular ledger, letter and tabloid paper sizes. There are also international sizes for paper such as A4 and A5.