B4 vs B6
| B4 | B6 | |
|---|---|---|
| Millimetres | 250 × 353 | 125 × 176 |
| Inches | 9.84 × 13.9 | 4.92 × 6.93 |
| Centimetres | 25 × 35.3 | 12.5 × 17.6 |
| Aspect ratio | 1:1.41 | 1:1.41 |
| Area | 882.5 cm² | 220 cm² |
Which is bigger
B4 is 4 times the area of B6. They are 2 steps apart in the B series and each step halves the sheet, so the multiple is two to the power of 2. The number in the name going up while the sheet goes down is why this has to be asked rather than read off.
B4 is 125 mm wider than B6. B4 is 177 mm taller.
Printing one on the other
A B6 page fits inside B4 whole — print it at 100% and you get a 62.5 mm border down each side and 88.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B4 artwork on B6 paper | 49.9% | 0.4 × 0 mm margin |
| B6 artwork on B4 paper | 200% | 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 1:1.41 proportions, so artwork scales between them without any cropping or extra margin — only the size changes.
Frequently asked questions
What is the difference between B4 and B6?
B4 is 250 × 353 mm and B6 is 125 × 176 mm. B4 is the larger of the two by 301.1% in area.
Can I print B4 on B6?
Not at full size. Scale it to 49.9% and it fits inside B6 with 0.4 × 0 mm to spare.
Which is bigger, B4 or B6?
B4 — 250 × 353 mm against 125 × 176 mm, which is 301.1% more area.
Related comparisons
B4 in full · B6 in full · All size comparisons · All paper sizes