A1+ Paper Size, Dimensions and Format (A series)


609 x 914




Aspect ratio 1:1.5
Perimeter (P) 3,046 mm
Diagonal (d) 1,098.31 mm
Area (A) 556,626 mm²


The A1+ format measures 609 x 914 mm or 24 x 36 inches. An A1+ paper fromat has an aspect ratio of 1:1.5. The Area of the A1+ paper size is 556,626 mm² or 864 in² with a perimeter of 3,046 mm or 120 in. An A1+ format has a diagonal length of 1,098.31 mm or 43.27 in. The A1+ 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 A1+ paper is 609 x 914 mm

The size of an A1+ paper in inches is 24 x 36 in

The half size of an A1+ paper is 304.5 x 457 mm or 12 x 18 in

The aspect ratio of an A1+ is 1:1.5

The area of an A1+ paper is 556,626 mm or 864 in

The perimeter of an A1+ paper is 3,046 mm or 120 in

The diagonal measurement of A1+ paper is 1,098.31 mm or 43.27 in

Other A Paper Sizes →

There are a total of 19 A Paper Sizes.