JB0 (Japanese paper sizes), paper size
The area of Japanese B-series paper is 1.5 times that of the corresponding A-paper, so the length ratio is approximately 1.22 times the length of the corresponding A-series paper. The aspect ratio of the paper is the same as for A-series paper. Both A- and B-series paper is widely available in Japan and most photocopiers are loaded with at least A4 and B4 paper.There are also a number of traditional paper sizes, which are now used mostly only by printers. The most common of these old series are the Shiroku-ban and the Kiku paper sizes.
International paper size: A
International paper size: B
International paper size: C
North American paper sizes
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×24.89
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×19.5
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×12.44
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×12.44
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×24.89
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×12.44
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×12.44
-
×6.21
-
×3.11
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×1.55
-
×2.08
-
×49.59
-
×29.08
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×21.64
-
×9.41
-
×7.78
-
×7.75
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×5.89
-
×5.62
-
×5.38
-
×4.65
-
×3.61
-
×2.95
-
×1.48
Japanese paper sizes
Inch based paper sizes
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×0.67
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×1.42
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×1.93
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×2.18
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×2.63
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×2.87
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×3.52
-
×3.36
-
×3.86
-
×4.26
-
×5.07
-
×4.07
-
×4.53
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×5.46
-
×7.27
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×8.51
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×10.12
-
×10.62
-
×10.77
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×12.38