Envelope No. 11 vs Envelope No. 12

Q: Which is bigger, Envelope No. 11 or Envelope No. 12?

Envelope No. 12 — 120.65 × 279.4 mm against 114.3 × 263.525 mm, which is 11.9% more area.

	Envelope No. 11	Envelope No. 12
Millimetres	114.3 × 263.525	120.65 × 279.4
Inches	4.5 × 10.38	4.75 × 11
Centimetres	11.4 × 26.4	12.1 × 27.9
Aspect ratio	1:2.31	1:2.32
Area	301.2 cm²	337.1 cm²

Which is bigger

Envelope No. 12, by 11.9% in area. Envelope No. 12 is 6.4 mm wider than Envelope No. 11. Envelope No. 12 is 15.9 mm taller.

Printing one on the other

A Envelope No. 11 page fits inside Envelope No. 12 whole — print it at 100% and you get a 3.2 mm border down each side and 7.9 mm top and bottom.

You want	Set the print scale to	Leaves
Envelope No. 11 artwork on Envelope No. 12 paper	105.6%	0 × 1.2 mm margin
Envelope No. 12 artwork on Envelope No. 11 paper	94.3%	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 1:2.31 proportions, so artwork scales between them without any cropping or extra margin — only the size changes.

Frequently asked questions

What is the difference between Envelope No. 11 and Envelope No. 12?

Envelope No. 11 is 114.3 × 263.525 mm and Envelope No. 12 is 120.65 × 279.4 mm. Envelope No. 12 is the larger of the two by 11.9% in area.

Can I print Envelope No. 11 on Envelope No. 12?

Yes, at 100% — Envelope No. 11 is smaller on both edges, so it lands inside Envelope No. 12 with a border all round.

Which is bigger, Envelope No. 11 or Envelope No. 12?

Envelope No. 12 — 120.65 × 279.4 mm against 114.3 × 263.525 mm, which is 11.9% more area.

Related comparisons

Envelope No. 11 in full · Envelope No. 12 in full · All size comparisons · All paper sizes