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

A3+ in millimeters

329 x 483




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 13 x 19 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.

Frequently Asked Questions:

The size of an A3+ paper is 329 x 483 mm

The size of an A3+ paper in inches is 13 x 19 in

The half size of an A3+ paper is 164.5 x 241.5 mm or 6.5 x 9.5 in

The aspect ratio of an A3+ is 1:1.47

The area of an A3+ paper is 158,907 mm or 247 in

The perimeter of an A3+ paper is 1,624 mm or 64 in

The diagonal measurement of A3+ paper is 584.41 mm or 23.02 in

Other A Paper Sizes

There are a total of 19 A Paper Sizes.