Shiroku-ban

Classic Japanese novel trim size.

Asian Sizes / 127 x 188 mmBack to Family

Dimensions in inches and centimeters

Portrait

5.00 in x 7.40 in

12.70 cm x 18.80 cm

Landscape

7.40 in x 5.00 in

18.80 cm x 12.70 cm

Dimensions Table

Specs

Swipe to see all measurements

Orientation	Millimeters	Inches	Pixels (300 dpi)
Portrait	127 x 188	5.00 in x 7.40 in	1500 px x 2220 px
Landscape	188 x 127	7.40 in x 5.00 in	2220 px x 1500 px

Deep Dive

Shiroku-ban measures 127 x 188 mm (12.70 x 18.80 cm).
Total surface area is 23,876 mm² (37.01 in²).
Approximate diagonal is 8.93 inches, useful when checking fit inside sleeves or packaging.
Linked to regional publishing and office systems, especially Japanese standards.