C8 Paper Size, Dimensions and Format (C series)


57 x 81




Aspect ratio 1:1.42
Perimeter (P) 276 mm
Diagonal (d) 99.05 mm
Area (A) 4,617 mm²


The C8 format measures 57 x 81 mm or 2.2 x 3.2 inches. An C8 paper fromat has an aspect ratio of 1:1.42. The Area of the C8 paper size is 4,617 mm² or 7.04 in² with a perimeter of 276 mm or 10.80 in. An C8 format has a diagonal length of 99.05 mm or 3.88 in. The C8 size belongs to the C series. In the C series there are a total of 11 paper sizes.

Frequently Asked Questions

The size of an C8 paper is 57 x 81 mm

The size of an C8 paper in inches is 2.2 x 3.2 in

The half size of an C8 paper is 28.5 x 40.5 mm or 1.1 x 1.6 in

The aspect ratio of an C8 is 1:1.42

The area of an C8 paper is 4,617 mm or 7.04 in

The perimeter of an C8 paper is 276 mm or 10.80 in

The diagonal measurement of C8 paper is 99.05 mm or 3.88 in

Other C Paper Sizes →

There are a total of 11 C Paper Sizes.