The ISO 216 A-series international standard paper sizes are defined by halving area from A0 down. Folding parallel to shorter sides scales efficiently. Learn about how the A-series allows consistent sizing perfect for brochures, printing, and more. A1 paper size in different values. A1 size in different values. The links below give you an overview. You will find the exact numbers for Micrometres (μm), Millimetres (mm), Centimetres (cm), Metres (m), Thou (th), Inches (in), Feet (ft), Yards (yd), Pixels, Pica, Point and HPGL. Click on the link to go to the appropriate size. You can calculate your A paper size in another unit with our calculator. 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.
