A7 Envelope (US) vs A8 Envelope (US)
| A7 Envelope (US) | A8 Envelope (US) | |
|---|---|---|
| Millimetres | 133.35 × 184.15 | 139.7 × 206.375 |
| Inches | 5.25 × 7.25 | 5.5 × 8.13 |
| Centimetres | 13.3 × 18.4 | 14 × 20.6 |
| Aspect ratio | 1:1.38 | 1:1.48 |
| Area | 245.6 cm² | 288.3 cm² |
Which is bigger
A8 Envelope (US), by 17.4% in area. A8 Envelope (US) is 6.3 mm wider than A7 Envelope (US). A8 Envelope (US) is 22.2 mm taller.
Printing one on the other
A A7 Envelope (US) page fits inside A8 Envelope (US) whole — print it at 100% and you get a 3.2 mm border down each side and 11.1 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A7 Envelope (US) artwork on A8 Envelope (US) paper | 104.8% | 0 × 13.5 mm margin |
| A8 Envelope (US) artwork on A7 Envelope (US) paper | 89.2% | 8.7 × 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 A8 Envelope (US) is 1:1.48. 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 13.5 mm of unwanted margin.
Frequently asked questions
What is the difference between A7 Envelope (US) and A8 Envelope (US)?
A7 Envelope (US) is 133.35 × 184.15 mm and A8 Envelope (US) is 139.7 × 206.375 mm. A8 Envelope (US) is the larger of the two by 17.4% in area.
Can I print A7 Envelope (US) on A8 Envelope (US)?
Yes, at 100% — A7 Envelope (US) is smaller on both edges, so it lands inside A8 Envelope (US) with a border all round.
Which is bigger, A7 Envelope (US) or A8 Envelope (US)?
A8 Envelope (US) — 139.7 × 206.375 mm against 133.35 × 184.15 mm, which is 17.4% more area.
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A7 Envelope (US) in full · A8 Envelope (US) in full · All size comparisons · All paper sizes