A4 paper size

From Free net encyclopedia

Image:A size illustration.png

A4 is a standard paper size, defined by the international standard ISO 216 as 210×297 mm (roughly 8.27×11.69 in). It is the normal size of paper for both domestic and business purposes in all countries except the United States, Canada, Mexico, the Philippines and Chile. See paper size standards in North America.

An A4 sheet cut in half along the long side produces two A5 sheets. An A3 sheet is double the size of an A4. All the A paper sizes are similar to each other. The ratio between the long side and short side is the square root of 2.

See also

• Paper size

External links

• A thorough explanation of ISO paper sizes
• A4 Paper Size & Historyda:A4-papir

de: DIN A4 fr:Format A4 it:DIN A4 he:A4 nl:A4 (papierformaat) pt:A4 (tamanho de papel)