Japanese Paper Sizes

JB0 1030 × 1456 mm JB1 728 × 1030 mm JB2 515 × 728 mm JB3 364 × 515 mm JB4 257 × 364 mm JB5 182 × 257 mm JB6 128 × 182 mm JB7 91 × 128 mm JB8 64 × 91 mm JB9 45 × 64 mm JB10 32 × 45 mm JB11 22 × 32 mm JB12 16 × 22 mm Shiroku ban 4 264 × 379 mm Shiroku ban 5 189 × 262 mm Shiroku ban 6 127 × 188 mm Kiku 4 227 × 306 mm Kiku 5 151 × 227 mm

Further Information

The Japanese Industrial Standards (JIS), defines two main series of paper sizes. They are the JIS A Series, and the JIS B Series. Both of the these series are widely available in Japan, as well as China and Taiwan. The JIS A Series is exactly the same as the ISO A Series, but with different tolerances. Both the JIS A Series and the JIS B Series have the same aspect ratio, but the area of the B Series paper is 1.5 times larger than the A Series. As well as the JIS A and B Series, there are a number of traditional Japanese paper sizes used mostly by printers. These include Shiroku-ban and Kiku, which are the most commonly used.

Format	Width × Height (mm)	Width × Height (in)
JB0	1030 × 1456 mm	40.6 × 57.3 in
JB1	728 × 1030 mm	28.7 × 40.6 in
JB2	515 × 728 mm	20.3 × 28.7 in
JB3	364 × 515 mm	14.3 × 20.3 in
JB4	257 × 364 mm	10.1 × 14.3 in
JB5	182 × 257 mm	7.2 × 10.1 in
JB6	128 × 182 mm	5 × 7.2 in
JB7	91 × 128 mm	3.6 × 5 in
JB8	64 × 91 mm	2.5 × 3.6 in
JB9	45 × 64 mm	1.8 × 2.5 in
JB10	32 × 45 mm	1.3 × 1.8 in
JB11	22 × 32 mm	0.9 × 1.3 in
JB12	16 × 22 mm	0.6 × 0.9 in
Shiroku ban 4	264 × 379 mm	10.4 × 14.9 in
Shiroku ban 5	189 × 262 mm	7.4 × 10.3 in
Shiroku ban 6	127 × 188 mm	5 × 7.4 in
Kiku 4	227 × 306 mm	8.9 × 12 in
Kiku 5	151 × 227 mm	5.9 × 8.9 in