A4: Learn about the A series

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 the area and dimension ratio of each sheet. The channel is called A4 — why is that? Go check it out, watch a couple of videos, and you’ll understand what it’s all about! On this channel you’ll meet a guy who always has something ... Paper sizes A0 to A8, life-size installation The Invasion of the Square Roots at the CosmoCaixa Barcelona science museum A size chart illustrating the ISO A series and a comparison with American letter and legal formats Comparison of some paper and photographic paper sizes close to the A4 size 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 ... A4 Paper Size The A4 is a paper size that is used in many countries around the world. It is especially popular in Europe, Asia, and parts of Africa. The A4 paper size measures 210mm by 297mm or 8.3 inches by 11.7 inches. It has an aspect ratio of 1:1.41 which means it is slightly longer than it is wide, unlike most other paper sizes which are square or nearly so. The A4 format has several advantages over other paper sizes. First, because it has a larger area than other formats such as Letter ...