A1: A Series paper sizes and formats

A Series paper sizes and formats: 4A0, 2A0, A0+, A0, A1+, A1, A2, A3+, A3, A4, A5, A6, A7, A8, A9... in mm, cm, m, inches, picas, pixels and points. A1 size is a versatile paper size widely used in design, printing, and professional applications. Knowing the dimensions in cm, mm, meters, inches, and pixels is essential for choosing the correct size for your project. A1 is the second largest size in the ISO A series, measuring 23.39 x 33.11 in inches, 594 x 841 in mm, and 59.4 x 84.1 in cm. It is widely used in Europe, Asia, and Africa for posters, technical drawings, art, and photography. A1 is the second largest of the A series paper sizes defined by ISO 216. It has an area of 0.5 square meters and a √2 aspect ratio. Learn about its origins, uses, and how it relates to other A sizes.