Royal Paper Size, Dimensions and Format (Imperial series)


508 x 635




Aspect ratio 1:1.25
Perimeter (P) 2,286 mm
Diagonal (d) 813.20 mm
Area (A) 322,580 mm²


The Royal format measures 508 x 635 mm or 20 x 25 inches. An Royal paper fromat has an aspect ratio of 1:1.25. The Area of the Royal paper size is 322,580 mm² or 500 in² with a perimeter of 2,286 mm or 90 in. An Royal format has a diagonal length of 813.20 mm or 32.02 in. The Royal 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 Royal paper is 508 x 635 mm

The size of an Royal paper in inches is 20 x 25 in

The half size of an Royal paper is 254 x 317.5 mm or 10 x 12.5 in

The aspect ratio of an Royal is 1:1.25

The area of an Royal paper is 322,580 mm or 500 in

The perimeter of an Royal paper is 2,286 mm or 90 in

The diagonal measurement of Royal paper is 813.20 mm or 32.02 in

Other Imperial Paper Sizes →

There are a total of 31 Imperial Paper Sizes.