B5 vs B9
| B5 | B9 | |
|---|---|---|
| Millimetres | 176 × 250 | 44 × 62 |
| Inches | 6.93 × 9.84 | 1.73 × 2.44 |
| Centimetres | 17.6 × 25 | 4.4 × 6.2 |
| Aspect ratio | 1:1.42 | 1:1.41 |
| Area | 440 cm² | 27.3 cm² |
Which is bigger
B5 is 16 times the area of B9. They are 4 steps apart in the B series and each step halves the sheet, so the multiple is two to the power of 4. The number in the name going up while the sheet goes down is why this has to be asked rather than read off.
B5 is 132 mm wider than B9. B5 is 188 mm taller.
Printing one on the other
A B9 page fits inside B5 whole — print it at 100% and you get a 66 mm border down each side and 94 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B5 artwork on B9 paper | 24.8% | 0.4 × 0 mm margin |
| B9 artwork on B5 paper | 400% | 0 × 2 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
The proportions differ: B5 is 1:1.42 and B9 is 1:1.41. That difference is why a layout moved between them never quite lines up — scale it to fit one edge and the other is left with 0.4 mm of unwanted margin.
Frequently asked questions
What is the difference between B5 and B9?
B5 is 176 × 250 mm and B9 is 44 × 62 mm. B5 is the larger of the two by 1512.9% in area.
Can I print B5 on B9?
Not at full size. Scale it to 24.8% and it fits inside B9 with 0.4 × 0 mm to spare.
Which is bigger, B5 or B9?
B5 — 176 × 250 mm against 44 × 62 mm, which is 1512.9% more area.
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B5 in full · B9 in full · All size comparisons · All paper sizes