A4 (dimensions 29.7 x 21 cm) and A3 (dimensions 42 x 29.7 cm) are the most common and compatible with most printers and photocopiers.

21 x 29.7 cm

The dimensions of A4 is 297 x 210 mm or 11.69 x 8.27 inches. It has an area of 0.062 m², which corresponds to 0.07 square yards, 0.65 square foot, or 93 square inches. When usual and recommended printing margins are put , the printable size of A4 is 247 x 170 mm.

A Paper Sizes in Metres, Centimetres, Millimetres and Micrometres

The width and height of US Letter paper are: In millimeters: 215.9mm x 279.4mm. In centimeters: 21.59cm x 27.94cm.

Want to convert that document or paper size (8.5″ x 13″) into centimeters (cm)? 8.5 inches x 13 inches is equivalent to 21.59 cm x 33.02 cm: 21.59 cm is the width (equivalent to 8.5 inches)

Page sizes and dimensions

70 x 56 cm

D-size paper

3508 x 2480 px

The ISO 216 definition of the A paper sizes is based on the following basis:

1. The length divided by the width is 1.4142.
2. The A0 size has an area of 1 square metre.
3. Each subsequent size A(n) is defined as A(n-1) cut in half parallel to its shorter sides.

The most popular formats of the traditional sizes are the Letter (8.5 × 11 inches), Legal (8.5 × 14 inches) and Tabloid (11 × 17 inches) formats. You more than likely use these formats in your everyday life. Letter is the standard for business and academic documents.

Standard International Paper Sizes

The aspect ratio of A4, 1:1.414 is near the average of 1.5 for 2:3 and 1.333 for 3:4. Both aspect ratio choices are wasting paper nearly equal if borderless printing to all sides was possible and the image not cropped.

A5