A3+ Paper Size, Dimensions and Format (A series)

A3+ in millimetres

329 x 483 mm




Aspect ratio 1:1.47
Area (A) 158,907 mm²
Perimeter (P) 1,624 mm
Diagonal (d) 584.41 mm


The A3+ format measures 329 x 483 mm or inches. An A3+ paper fromat has an aspect ratio of 1:1.47. The Area of the A3+ paper size is 158,907 mm² or 247 in² with a perimeter of 1,624 mm or 64 in. An A3+ format has a diagonal length of 584.41 mm or 23.02 in. The A3+ 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.