A9 Envelope (US) vs Envelope No. 9
| A9 Envelope (US) | Envelope No. 9 | |
|---|---|---|
| Millimetres | 146.05 × 222.25 | 98.425 × 225.425 |
| Inches | 5.75 × 8.75 | 3.88 × 8.88 |
| Centimetres | 14.6 × 22.2 | 9.8 × 22.5 |
| Aspect ratio | 1:1.52 | 1:2.29 |
| Area | 324.6 cm² | 221.9 cm² |
Which is bigger
A9 Envelope (US), by 46.3% in area. A9 Envelope (US) is 47.6 mm wider than Envelope No. 9. Envelope No. 9 is 3.2 mm taller.
Printing one on the other
Neither sheet fits inside the other at full size: A9 Envelope (US) is the wider of the two while Envelope No. 9 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 |
|---|---|---|
| A9 Envelope (US) artwork on Envelope No. 9 paper | 67.4% | 0 × 75.6 mm margin |
| Envelope No. 9 artwork on A9 Envelope (US) paper | 98.6% | 49 × 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: A9 Envelope (US) is 1:1.52 and Envelope No. 9 is 1:2.29. 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 75.6 mm of unwanted margin.
Frequently asked questions
What is the difference between A9 Envelope (US) and Envelope No. 9?
A9 Envelope (US) is 146.05 × 222.25 mm and Envelope No. 9 is 98.425 × 225.425 mm. A9 Envelope (US) is the larger of the two by 46.3% in area.
Can I print A9 Envelope (US) on Envelope No. 9?
Not at full size. Scale it to 67.4% and it fits inside Envelope No. 9 with 0 × 75.6 mm to spare.
Which is bigger, A9 Envelope (US) or Envelope No. 9?
A9 Envelope (US) — 146.05 × 222.25 mm against 98.425 × 225.425 mm, which is 46.3% more area.
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A9 Envelope (US) in full · Envelope No. 9 in full · All size comparisons · All paper sizes