A7 vs JIS B8
| A7 | JIS B8 | |
|---|---|---|
| Millimetres | 74 × 105 | 64 × 91 |
| Inches | 2.91 × 4.13 | 2.52 × 3.58 |
| Centimetres | 7.4 × 10.5 | 6.4 × 9.1 |
| Aspect ratio | 1:1.42 | 1:1.42 |
| Area | 77.7 cm² | 58.2 cm² |
Which is bigger
A7, by 33.4% in area. A7 is 10 mm wider than JIS B8. A7 is 14 mm taller.
Printing one on the other
A JIS B8 page fits inside A7 whole — print it at 100% and you get a 5 mm border down each side and 7 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A7 artwork on JIS B8 paper | 86.5% | 0 × 0.2 mm margin |
| JIS B8 artwork on A7 paper | 115.4% | 0.2 × 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 A7 and JIS B8?
A7 is 74 × 105 mm and JIS B8 is 64 × 91 mm. A7 is the larger of the two by 33.4% in area.
Can I print A7 on JIS B8?
Not at full size. Scale it to 86.5% and it fits inside JIS B8 with 0 × 0.2 mm to spare.
Which is bigger, A7 or JIS B8?
A7 — 74 × 105 mm against 64 × 91 mm, which is 33.4% more area.
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A7 in full · JIS B8 in full · All size comparisons · All paper sizes