A11 Paper Size, Dimensions and Format (A series)

A11 in millimeters

18 x 26




Aspect ratio 1:1.44
Area (A) 468 mm²
Perimeter (P) 88 mm
Diagonal (d) 31.62 mm


The A11 format measures 18 x 26 mm or 0.7 x 1 inches. An A11 paper fromat has an aspect ratio of 1:1.44. The Area of the A11 paper size is 468 mm² or 0.70 in² with a perimeter of 88 mm or 3.40 in. An A11 format has a diagonal length of 31.62 mm or 1.22 in. The A11 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 A11 paper is 18 x 26 mm

The size of an A11 paper in inches is 0.7 x 1 in

The half size of an A11 paper is 9 x 13 mm or 0.35 x 0.5 in

The aspect ratio of an A11 is 1:1.44

The area of an A11 paper is 468 mm or 0.70 in

The perimeter of an A11 paper is 88 mm or 3.40 in

The diagonal measurement of A11 paper is 31.62 mm or 1.22 in

Other A Paper Sizes

There are a total of 19 A Paper Sizes.