B4 vs C4
| B4 | C4 | |
|---|---|---|
| Millimetres | 250 × 353 | 229 × 324 |
| Inches | 9.84 × 13.9 | 9.02 × 12.76 |
| Centimetres | 25 × 35.3 | 22.9 × 32.4 |
| Aspect ratio | 1:1.41 | 1:1.41 |
| Area | 882.5 cm² | 742 cm² |
Which is bigger
B4, by 18.9% in area. B4 is 21 mm wider than C4. B4 is 29 mm taller.
Printing one on the other
A C4 page fits inside B4 whole — print it at 100% and you get a 10.5 mm border down each side and 14.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B4 artwork on C4 paper | 91.6% | 0 × 0.7 mm margin |
| C4 artwork on B4 paper | 109% | 0.5 × 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 B4 and C4?
B4 is 250 × 353 mm and C4 is 229 × 324 mm. B4 is the larger of the two by 18.9% in area.
Can I print B4 on C4?
Not at full size. Scale it to 91.6% and it fits inside C4 with 0 × 0.7 mm to spare.
Which is bigger, B4 or C4?
B4 — 250 × 353 mm against 229 × 324 mm, which is 18.9% more area.
B4 in full · C4 in full · All size comparisons · All paper sizes