Atlas Paper Size, Dimensions and Format (Imperial series)

Atlas in millimeters

660 x 864




Aspect ratio 1:1.31
Area (A) 570,240 mm²
Perimeter (P) 3,048 mm
Diagonal (d) 1,087.24 mm


The Atlas format measures 660 x 864 mm or 26 x 34 inches. An Atlas paper fromat has an aspect ratio of 1:1.31. The Area of the Atlas paper size is 570,240 mm² or 884 in² with a perimeter of 3,048 mm or 120 in. An Atlas format has a diagonal length of 1,087.24 mm or 42.80 in. The Atlas size belongs to the Imperial series. In the Imperial series there are a total of 31 paper sizes.

Frequently Asked Questions:

The size of an Atlas paper is 660 x 864 mm

The size of an Atlas paper in inches is 26 x 34 in

The half size of an Atlas paper is 330 x 432 mm or 13 x 17 in

The aspect ratio of an Atlas is 1:1.31

The area of an Atlas paper is 570,240 mm or 884 in

The perimeter of an Atlas paper is 3,048 mm or 120 in

The diagonal measurement of Atlas paper is 1,087.24 mm or 42.80 in

Other Imperial Paper Sizes

There are a total of 31 Imperial Paper Sizes.