Japanese paper sizes

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