A7 Envelope (US) vs A9 Envelope (US)
| A7 Envelope (US) | A9 Envelope (US) | |
|---|---|---|
| Millimetres | 133.35 × 184.15 | 146.05 × 222.25 |
| Inches | 5.25 × 7.25 | 5.75 × 8.75 |
| Centimetres | 13.3 × 18.4 | 14.6 × 22.2 |
| Aspect ratio | 1:1.38 | 1:1.52 |
| Area | 245.6 cm² | 324.6 cm² |
Which is bigger
A9 Envelope (US), by 32.2% in area. A9 Envelope (US) is 12.7 mm wider than A7 Envelope (US). A9 Envelope (US) is 38.1 mm taller.
Printing one on the other
A A7 Envelope (US) page fits inside A9 Envelope (US) whole — print it at 100% and you get a 6.4 mm border down each side and 19 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A7 Envelope (US) artwork on A9 Envelope (US) paper | 109.5% | 0 × 20.6 mm margin |
| A9 Envelope (US) artwork on A7 Envelope (US) paper | 82.9% | 12.3 × 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: A7 Envelope (US) is 1:1.38 and A9 Envelope (US) is 1:1.52. 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 20.6 mm of unwanted margin.
Frequently asked questions
What is the difference between A7 Envelope (US) and A9 Envelope (US)?
A7 Envelope (US) is 133.35 × 184.15 mm and A9 Envelope (US) is 146.05 × 222.25 mm. A9 Envelope (US) is the larger of the two by 32.2% in area.
Can I print A7 Envelope (US) on A9 Envelope (US)?
Yes, at 100% — A7 Envelope (US) is smaller on both edges, so it lands inside A9 Envelope (US) with a border all round.
Which is bigger, A7 Envelope (US) or A9 Envelope (US)?
A9 Envelope (US) — 146.05 × 222.25 mm against 133.35 × 184.15 mm, which is 32.2% more area.
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A7 Envelope (US) in full · A9 Envelope (US) in full · All size comparisons · All paper sizes