A9 Paper Size, Dimensions and Format (A series)


37 x 52




Aspect ratio 1:1.41
Perimeter (P) 178 mm
Diagonal (d) 63.82 mm
Area (A) 1,924 mm²


The A9 format measures 37 x 52 mm or 1.5 x 2 inches. An A9 paper fromat has an aspect ratio of 1:1.41. The Area of the A9 paper size is 1,924 mm² or 3 in² with a perimeter of 178 mm or 7 in. An A9 format has a diagonal length of 63.82 mm or 2.50 in. The A9 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 A9 paper is 37 x 52 mm

The size of an A9 paper in inches is 1.5 x 2 in

The half size of an A9 paper is 18.5 x 26 mm or 0.75 x 1 in

The aspect ratio of an A9 is 1:1.41

The area of an A9 paper is 1,924 mm or 3 in

The perimeter of an A9 paper is 178 mm or 7 in

The diagonal measurement of A9 paper is 63.82 mm or 2.50 in

Other A Paper Sizes →

There are a total of 19 A Paper Sizes.