A8 vs JIS B9
| A8 | JIS B9 | |
|---|---|---|
| Millimetres | 52 × 74 | 45 × 64 |
| Inches | 2.05 × 2.91 | 1.77 × 2.52 |
| Centimetres | 5.2 × 7.4 | 4.5 × 6.4 |
| Aspect ratio | 1:1.42 | 1:1.42 |
| Area | 38.5 cm² | 28.8 cm² |
Which is bigger
A8, by 33.6% in area. A8 is 7 mm wider than JIS B9. A8 is 10 mm taller.
Printing one on the other
A JIS B9 page fits inside A8 whole — print it at 100% and you get a 3.5 mm border down each side and 5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A8 artwork on JIS B9 paper | 86.5% | 0 × 0 mm margin |
| JIS B9 artwork on A8 paper | 115.6% | 0 × 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 A8 and JIS B9?
A8 is 52 × 74 mm and JIS B9 is 45 × 64 mm. A8 is the larger of the two by 33.6% in area.
Can I print A8 on JIS B9?
Not at full size. Scale it to 86.5% and it fits inside JIS B9 with 0 × 0 mm to spare.
Which is bigger, A8 or JIS B9?
A8 — 52 × 74 mm against 45 × 64 mm, which is 33.6% more area.
Related comparisons
- A5 vs A8
- A6 vs A8
- A7 vs A8
- A8 vs A9
- A8 vs A10
- A8 vs B8
- A8 vs Business Card (US)
- A8 vs Business Card (EU)
- A8 vs B9
- A8 vs JIS B8
- A9 vs JIS B9
- B9 vs JIS B9
A8 in full · JIS B9 in full · All size comparisons · All paper sizes