You 4

Japanese long envelope format.

International Envelopes / 105 x 235 mmBack to Family

Dimensions in inches and centimeters

Portrait

4.13 in x 9.25 in

10.50 cm x 23.50 cm

Landscape

9.25 in x 4.13 in

23.50 cm x 10.50 cm

Dimensions Table

Specs

Swipe to see all measurements

Orientation	Millimeters	Inches	Pixels (300 dpi)
Portrait	105 x 235	4.13 in x 9.25 in	1240 px x 2776 px
Landscape	235 x 105	9.25 in x 4.13 in	2776 px x 1240 px

Deep Dive

You 4 measures 105 x 235 mm (10.50 x 23.50 cm).
Total surface area is 24,675 mm² (38.25 in²).
Approximate diagonal is 10.13 inches, useful when checking fit inside sleeves or packaging.
Reflects regional mailing norms and global office conventions.