RA4 Paper Size, Dimensions and Format (Raw series)

RA4 in millimeters

215 x 305




Aspect ratio 1:1.42
Area (A) 65,575 mm²
Perimeter (P) 1,040 mm
Diagonal (d) 373.16 mm


The RA4 format measures 215 x 305 mm or 8.5 x 12 inches. An RA4 paper fromat has an aspect ratio of 1:1.42. The Area of the RA4 paper size is 65,575 mm² or 102 in² with a perimeter of 1,040 mm or 41 in. An RA4 format has a diagonal length of 373.16 mm or 14.71 in. The RA4 size belongs to the Raw series. In the Raw series there are a total of 19 paper sizes.

Frequently Asked Questions:

The size of an RA4 paper is 215 x 305 mm

The size of an RA4 paper in inches is 8.5 x 12 in

The half size of an RA4 paper is 107.5 x 152.5 mm or 4.25 x 6 in

The aspect ratio of an RA4 is 1:1.42

The area of an RA4 paper is 65,575 mm or 102 in

The perimeter of an RA4 paper is 1,040 mm or 41 in

The diagonal measurement of RA4 paper is 373.16 mm or 14.71 in

Other Raw Paper Sizes

There are a total of 19 Raw Paper Sizes.