A9 vs B9
| A9 | B9 | |
|---|---|---|
| Millimetres | 37 × 52 | 44 × 62 |
| Inches | 1.46 × 2.05 | 1.73 × 2.44 |
| Centimetres | 3.7 × 5.2 | 4.4 × 6.2 |
| Aspect ratio | 1:1.41 | 1:1.41 |
| Area | 19.2 cm² | 27.3 cm² |
Which is bigger
B9, by 41.8% in area. B9 is 7 mm wider than A9. B9 is 10 mm taller.
Printing one on the other
A A9 page fits inside B9 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 |
|---|---|---|
| A9 artwork on B9 paper | 118.9% | 0 × 0.2 mm margin |
| B9 artwork on A9 paper | 83.9% | 0.1 × 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 1:1.41 proportions, so artwork scales between them without any cropping or extra margin — only the size changes.
Frequently asked questions
What is the difference between A9 and B9?
A9 is 37 × 52 mm and B9 is 44 × 62 mm. B9 is the larger of the two by 41.8% in area.
Can I print A9 on B9?
Yes, at 100% — A9 is smaller on both edges, so it lands inside B9 with a border all round.
Which is bigger, A9 or B9?
B9 — 44 × 62 mm against 37 × 52 mm, which is 41.8% more area.
A9 in full · B9 in full · All size comparisons · All paper sizes