A8 Envelope (US) vs A10 Envelope (US)
| A8 Envelope (US) | A10 Envelope (US) | |
|---|---|---|
| Millimetres | 139.7 × 206.375 | 152.4 × 241.3 |
| Inches | 5.5 × 8.13 | 6 × 9.5 |
| Centimetres | 14 × 20.6 | 15.2 × 24.1 |
| Aspect ratio | 1:1.48 | 1:1.58 |
| Area | 288.3 cm² | 367.7 cm² |
Which is bigger
A10 Envelope (US), by 27.6% in area. A10 Envelope (US) is 12.7 mm wider than A8 Envelope (US). A10 Envelope (US) is 34.9 mm taller.
Printing one on the other
A A8 Envelope (US) page fits inside A10 Envelope (US) whole — print it at 100% and you get a 6.4 mm border down each side and 17.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A8 Envelope (US) artwork on A10 Envelope (US) paper | 109.1% | 0 × 16.2 mm margin |
| A10 Envelope (US) artwork on A8 Envelope (US) paper | 85.5% | 9.4 × 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: A8 Envelope (US) is 1:1.48 and A10 Envelope (US) is 1:1.58. 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 16.2 mm of unwanted margin.
Frequently asked questions
What is the difference between A8 Envelope (US) and A10 Envelope (US)?
A8 Envelope (US) is 139.7 × 206.375 mm and A10 Envelope (US) is 152.4 × 241.3 mm. A10 Envelope (US) is the larger of the two by 27.6% in area.
Can I print A8 Envelope (US) on A10 Envelope (US)?
Yes, at 100% — A8 Envelope (US) is smaller on both edges, so it lands inside A10 Envelope (US) with a border all round.
Which is bigger, A8 Envelope (US) or A10 Envelope (US)?
A10 Envelope (US) — 152.4 × 241.3 mm against 139.7 × 206.375 mm, which is 27.6% more area.
Related comparisons
- Executive vs A10 Envelope (US)
- Half Letter vs A8 Envelope (US)
- Half Letter vs A10 Envelope (US)
- Junior Legal vs A8 Envelope (US)
- Junior Legal vs A10 Envelope (US)
- Photo 5×7 vs A8 Envelope (US)
- Photo 8×10 vs A10 Envelope (US)
- Envelope No. 10 vs A8 Envelope (US)
- Envelope No. 10 vs A10 Envelope (US)
- A7 Envelope (US) vs A8 Envelope (US)
- A7 Envelope (US) vs A10 Envelope (US)
- Photo 6×8 vs A8 Envelope (US)
A8 Envelope (US) in full · A10 Envelope (US) in full · All size comparisons · All paper sizes