B5 vs Envelope No. 12

Q: Can I print B5 on Envelope No. 12?

Not at full size. Scale it to 68.6% and it fits inside Envelope No. 12 with 0 × 108 mm to spare.

	B5	Envelope No. 12
Millimetres	176 × 250	120.65 × 279.4
Inches	6.93 × 9.84	4.75 × 11
Centimetres	17.6 × 25	12.1 × 27.9
Aspect ratio	1:1.42	1:2.32
Area	440 cm²	337.1 cm²

Which is bigger

B5, by 30.5% in area. B5 is 55.4 mm wider than Envelope No. 12. Envelope No. 12 is 29.4 mm taller.

Printing one on the other

Neither sheet fits inside the other at full size: B5 is the wider of the two while Envelope No. 12 is the taller, so each overruns the other on one edge. Whichever way you go, something has to scale or crop.

You want	Set the print scale to	Leaves
B5 artwork on Envelope No. 12 paper	68.6%	0 × 108 mm margin
Envelope No. 12 artwork on B5 paper	89.5%	68 × 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: B5 is 1:1.42 and Envelope No. 12 is 1:2.32. 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 108 mm of unwanted margin.

Frequently asked questions

What is the difference between B5 and Envelope No. 12?

B5 is 176 × 250 mm and Envelope No. 12 is 120.65 × 279.4 mm. B5 is the larger of the two by 30.5% in area.

Can I print B5 on Envelope No. 12?

Not at full size. Scale it to 68.6% and it fits inside Envelope No. 12 with 0 × 108 mm to spare.

Which is bigger, B5 or Envelope No. 12?

B5 — 176 × 250 mm against 120.65 × 279.4 mm, which is 30.5% more area.

Related comparisons

B5 in full · Envelope No. 12 in full · All size comparisons · All paper sizes