Japanese Paper Sizes

Japanese paper sizes include the JIS B series (JB), which differs from the ISO B series. Japan also uses unique sizes like Kiku and Shiroku ban for specific publishing applications.

JB01030 × 1456mm JB1728 × 1030mm JB2515 × 728mm JB3364 × 515mm JB4257 × 364mm JB5182 × 257mm JB6128 × 182mm JB791 × 128mm JB864 × 91mm JB945 × 64mm JB1032 × 45mm Kiku 4227 × 306mm Kiku 5151 × 227mm Shiroku ban 4264 × 379mm Shiroku ban 5189 × 262mm Shiroku ban 6127 × 188mm

All Japanese Paper Sizes Dimensions

Size	Width × Height (mm)	Width × Height (in)	Width × Height (cm)
JB0	1030 × 1456	40.55 × 57.32	103.00 × 145.60
JB1	728 × 1030	28.66 × 40.55	72.80 × 103.00
JB2	515 × 728	20.28 × 28.66	51.50 × 72.80
JB3	364 × 515	14.33 × 20.28	36.40 × 51.50
JB4	257 × 364	10.12 × 14.33	25.70 × 36.40
JB5	182 × 257	7.17 × 10.12	18.20 × 25.70
JB6	128 × 182	5.04 × 7.17	12.80 × 18.20
JB7	91 × 128	3.58 × 5.04	9.10 × 12.80
JB8	64 × 91	2.52 × 3.58	6.40 × 9.10
JB9	45 × 64	1.77 × 2.52	4.50 × 6.40
JB10	32 × 45	1.26 × 1.77	3.20 × 4.50
Kiku 4	227 × 306	8.94 × 12.05	22.70 × 30.60
Kiku 5	151 × 227	5.94 × 8.94	15.10 × 22.70
Shiroku ban 4	264 × 379	10.39 × 14.92	26.40 × 37.90
Shiroku ban 5	189 × 262	7.44 × 10.31	18.90 × 26.20
Shiroku ban 6	127 × 188	5.00 × 7.40	12.70 × 18.80