Japanese Paper Sizes


About Japanese Paper Sizes


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.

Japanese Paper Sizes
Format Width × Height (mm) Width × Height (in)
JB0 1030 x 1456 mm 40.5 x 57.3 in
JB1 728 x 1030 mm 28.7 x 40.5 in
JB2 515 x 728 mm 20.3 x 28.7 in
JB3 364 x 515 mm 14.3 x 20.3 in
JB4 257 x 364 mm 10.1 x 14.3 in
JB5 182 x 257 mm 7.2 x 10.1 in
JB6 128 x 182 mm 5 x 7.2 in
JB7 91 x 128 mm 3.6 x 5 in
JB8 64 x 91 mm 2.5 x 3.6 in
JB9 45 x 64 mm 1.8 x 2.5 in
JB10 32 x 45 mm 1.3 x 1.8 in
JB11 22 x 32 mm 0.9 x 1.3 in
JB12 16 x 22 mm 0.6 x 0.9 in
Shiroku ban 4 264 x 379 mm 10.4 x 14.9 in
Shiroku ban 5 189 x 262 mm 7.4 x 10.3 in
Shiroku ban 6 127 x 188 mm 5 x 7.4 in
Kiku 4 227 x 306 mm 8.9 x 12 in
Kiku 5 151 x 227 mm 5.9 x 8.9 in

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