18mo Paper Size, Dimensions and Format (Books series)


101.6 x 165.1




Aspect ratio 1:1.63
Perimeter (P) 533.40 mm
Diagonal (d) 193.86 mm
Area (A) 16,774.16 mm²


The 18mo format measures 101.6 x 165.1 mm or 4 x 6.5 inches. An 18mo paper fromat has an aspect ratio of 1:1.63. The Area of the 18mo paper size is 16,774.16 mm² or 26 in² with a perimeter of 533.40 mm or 21 in. An 18mo format has a diagonal length of 193.86 mm or 7.63 in. The 18mo size belongs to the Books series. In the Books series there are a total of 17 paper sizes.

Frequently Asked Questions

The size of an 18mo paper is 101.6 x 165.1 mm

The size of an 18mo paper in inches is 4 x 6.5 in

The half size of an 18mo paper is 50.8 x 82.55 mm or 2 x 3.25 in

The aspect ratio of an 18mo is 1:1.63

The area of an 18mo paper is 16,774.16 mm or 26 in

The perimeter of an 18mo paper is 533.40 mm or 21 in

The diagonal measurement of 18mo paper is 193.86 mm or 7.63 in

Other Books Paper Sizes →

There are a total of 17 Books Paper Sizes.