A10 vs B10
| A10 | B10 | |
|---|---|---|
| Millimetres | 26 × 37 | 31 × 44 |
| Inches | 1.02 × 1.46 | 1.22 × 1.73 |
| Centimetres | 2.6 × 3.7 | 3.1 × 4.4 |
| Aspect ratio | 1:1.42 | 1:1.42 |
| Area | 9.6 cm² | 13.6 cm² |
Which is bigger
B10, by 41.8% in area. B10 is 5 mm wider than A10. B10 is 7 mm taller.
Printing one on the other
A A10 page fits inside B10 whole — print it at 100% and you get a 2.5 mm border down each side and 3.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A10 artwork on B10 paper | 118.9% | 0.1 × 0 mm margin |
| B10 artwork on A10 paper | 83.9% | 0 × 0.1 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 A10 and B10?
A10 is 26 × 37 mm and B10 is 31 × 44 mm. B10 is the larger of the two by 41.8% in area.
Can I print A10 on B10?
Yes, at 100% — A10 is smaller on both edges, so it lands inside B10 with a border all round.
Which is bigger, A10 or B10?
B10 — 31 × 44 mm against 26 × 37 mm, which is 41.8% more area.
A10 in full · B10 in full · All size comparisons · All paper sizes