Envelope No. 10 vs Envelope No. 9

Q: Can I print Envelope No. 10 on Envelope No. 9?

Not at full size. Scale it to 93.4% and it fits inside Envelope No. 9 with 0.5 × 0 mm to spare.

Q: Which is bigger, Envelope No. 10 or Envelope No. 9?

Envelope No. 10 — 104.775 × 241.3 mm against 98.425 × 225.425 mm, which is 13.9% more area.

	Envelope No. 10	Envelope No. 9
Millimetres	104.775 × 241.3	98.425 × 225.425
Inches	4.13 × 9.5	3.88 × 8.88
Centimetres	10.5 × 24.1	9.8 × 22.5
Aspect ratio	1:2.3	1:2.29
Area	252.8 cm²	221.9 cm²

Which is bigger

Envelope No. 10, by 13.9% in area. Envelope No. 10 is 6.4 mm wider than Envelope No. 9. Envelope No. 10 is 15.9 mm taller.

Printing one on the other

A Envelope No. 9 page fits inside Envelope No. 10 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. 10 artwork on Envelope No. 9 paper	93.4%	0.5 × 0 mm margin
Envelope No. 9 artwork on Envelope No. 10 paper	106.5%	0 × 1.3 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 1:2.3 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. 10 and Envelope No. 9?

Envelope No. 10 is 104.775 × 241.3 mm and Envelope No. 9 is 98.425 × 225.425 mm. Envelope No. 10 is the larger of the two by 13.9% in area.

Can I print Envelope No. 10 on Envelope No. 9?

Not at full size. Scale it to 93.4% and it fits inside Envelope No. 9 with 0.5 × 0 mm to spare.

Which is bigger, Envelope No. 10 or Envelope No. 9?

Envelope No. 10 — 104.775 × 241.3 mm against 98.425 × 225.425 mm, which is 13.9% more area.

Related comparisons

Envelope No. 10 in full · Envelope No. 9 in full · All size comparisons · All paper sizes