A8 Paper Size, Dimensions and Format (A series)

A8 in millimetres

52 x 74 mm




Aspect ratio 1:1.42
Area (A) 3,848 mm²
Perimeter (P) 252 mm
Diagonal (d) 90.44 mm


The A8 format measures 52 x 74 mm or inches. An A8 paper fromat has an aspect ratio of 1:1.42. The Area of the A8 paper size is 3,848 mm² or 5.80 in² with a perimeter of 252 mm or 9.80 in. An A8 format has a diagonal length of 90.44 mm or 3.52 in. The A8 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.