A0 Paper Size, Dimensions and Format (A series)


841 x 1189




Aspect ratio 1:1.41
Perimeter (P) 4,060 mm
Diagonal (d) 1,456.37 mm
Area (A) 999,949 mm²


The A0 format measures 841 x 1189 mm or 33.1 x 46.8 inches. An A0 paper fromat has an aspect ratio of 1:1.41. The Area of the A0 paper size is 999,949 mm² or 1,549.08 in² with a perimeter of 4,060 mm or 159.80 in. An A0 format has a diagonal length of 1,456.37 mm or 57.32 in. The A0 size belongs to the A series. In the A series there are a total of 19 paper sizes.

Frequently Asked Questions

The size of an A0 paper is 841 x 1189 mm

The size of an A0 paper in inches is 33.1 x 46.8 in

The half size of an A0 paper is 420.5 x 594.5 mm or 16.55 x 23.4 in

The aspect ratio of an A0 is 1:1.41

The area of an A0 paper is 999,949 mm or 1,549.08 in

The perimeter of an A0 paper is 4,060 mm or 159.80 in

The diagonal measurement of A0 paper is 1,456.37 mm or 57.32 in

Other A Paper Sizes →

There are a total of 19 A Paper Sizes.