what is the difference between a4 and us letter
Letter or US Letter is the most common paper size used for official purposes in the North-American countries. They are also known as âAmerican Quartoâ. These papers are slightly wider and shorter than the standard A4 size. They do not consist of any ratio format.
A4 is the most commonly used paper size. The actual dimensionsof A4 size paper is 210mm Ã 297mm or 8.27 inch Ã 11.69 inch. ISO is a standard that has been accepted by nearly all countries of the world except the US, Canada, and Mexico. In these countries, the paper sizes are differently standardized.