B4 vs B8

Q: Can I print B4 on B8?

Not at full size. Scale it to 24.8% and it fits inside B8 with 0 × 0.5 mm to spare.

	B4	B8
Millimetres	250 × 353	62 × 88
Inches	9.84 × 13.9	2.44 × 3.46
Centimetres	25 × 35.3	6.2 × 8.8
Aspect ratio	1:1.41	1:1.42
Area	882.5 cm²	54.6 cm²

Which is bigger

B4 is 16 times the area of B8. 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.

B4 is 188 mm wider than B8. B4 is 265 mm taller.

Printing one on the other

A B8 page fits inside B4 whole — print it at 100% and you get a 94 mm border down each side and 132.5 mm top and bottom.

You want	Set the print scale to	Leaves
B4 artwork on B8 paper	24.8%	0 × 0.5 mm margin
B8 artwork on B4 paper	401.1%	1.3 × 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

The proportions differ: B4 is 1:1.41 and B8 is 1:1.42. 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 0.5 mm of unwanted margin.

Frequently asked questions

What is the difference between B4 and B8?

B4 is 250 × 353 mm and B8 is 62 × 88 mm. B4 is the larger of the two by 1517.5% in area.

Can I print B4 on B8?

Not at full size. Scale it to 24.8% and it fits inside B8 with 0 × 0.5 mm to spare.

Which is bigger, B4 or B8?

B4 — 250 × 353 mm against 62 × 88 mm, which is 1517.5% more area.

Related comparisons

B4 in full · B8 in full · All size comparisons · All paper sizes