A13 Paper Size, Dimensions and Format (A series)

A13 in millimetres

9 x 13 mm




Aspect ratio 1:1.45
Area (A) 117 mm²
Perimeter (P) 44 mm
Diagonal (d) 15.81 mm


The A13 format measures 9 x 13 mm or inches. An A13 paper fromat has an aspect ratio of 1:1.45. The Area of the A13 paper size is 117 mm² or 0.20 in² with a perimeter of 44 mm or 1.80 in. An A13 format has a diagonal length of 15.81 mm or 0.64 in. The A13 size belongs to the A series. In the A series there are a total of 19 paper sizes.

Other A Paper Sizes

There are a total of 19 A Paper Sizes.