A5 vs JIS B6
| A5 | JIS B6 | |
|---|---|---|
| Millimetres | 148 × 210 | 128 × 182 |
| Inches | 5.83 × 8.27 | 5.04 × 7.17 |
| Centimetres | 14.8 × 21 | 12.8 × 18.2 |
| Aspect ratio | 1:1.42 | 1:1.42 |
| Area | 310.8 cm² | 233 cm² |
Which is bigger
A5, by 33.4% in area. A5 is 20 mm wider than JIS B6. A5 is 28 mm taller.
Printing one on the other
A JIS B6 page fits inside A5 whole — print it at 100% and you get a 10 mm border down each side and 14 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A5 artwork on JIS B6 paper | 86.5% | 0 × 0.4 mm margin |
| JIS B6 artwork on A5 paper | 115.4% | 0.3 × 0 mm margin |
These are the numbers for the "custom scale" box in a print dialog. "Fit to page" computes the same thing, but knowing the figure tells you in advance whether the result will look deliberate or accidental.
Why the shapes matter
Both sheets have the same 1:1.42 proportions, so artwork scales between them without any cropping or extra margin — only the size changes.
Frequently asked questions
What is the difference between A5 and JIS B6?
A5 is 148 × 210 mm and JIS B6 is 128 × 182 mm. A5 is the larger of the two by 33.4% in area.
Can I print A5 on JIS B6?
Not at full size. Scale it to 86.5% and it fits inside JIS B6 with 0 × 0.4 mm to spare.
Which is bigger, A5 or JIS B6?
A5 — 148 × 210 mm against 128 × 182 mm, which is 33.4% more area.
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A5 in full · JIS B6 in full · All size comparisons · All paper sizes