A1 Envelope (US) vs Envelope No. 6 3/4
| A1 Envelope (US) | Envelope No. 6 3/4 | |
|---|---|---|
| Millimetres | 92.075 × 130.175 | 92.075 × 165.1 |
| Inches | 3.63 × 5.13 | 3.63 × 6.5 |
| Centimetres | 9.2 × 13 | 9.2 × 16.5 |
| Aspect ratio | 1:1.41 | 1:1.79 |
| Area | 119.9 cm² | 152 cm² |
Which is bigger
Envelope No. 6 3/4, by 26.8% in area. Both sheets are exactly 92.075 mm wide. Envelope No. 6 3/4 is 34.9 mm taller.
Printing one on the other
A A1 Envelope (US) page fits inside Envelope No. 6 3/4 whole — print it at 100% and you get a 0 mm border down each side and 17.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A1 Envelope (US) artwork on Envelope No. 6 3/4 paper | 100% | 0 × 34.9 mm margin |
| Envelope No. 6 3/4 artwork on A1 Envelope (US) paper | 78.8% | 19.5 × 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: A1 Envelope (US) is 1:1.41 and Envelope No. 6 3/4 is 1:1.79. 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 34.9 mm of unwanted margin.
Frequently asked questions
What is the difference between A1 Envelope (US) and Envelope No. 6 3/4?
A1 Envelope (US) is 92.075 × 130.175 mm and Envelope No. 6 3/4 is 92.075 × 165.1 mm. Envelope No. 6 3/4 is the larger of the two by 26.8% in area.
Can I print A1 Envelope (US) on Envelope No. 6 3/4?
Yes, at 100% — A1 Envelope (US) is smaller on both edges, so it lands inside Envelope No. 6 3/4 with a border all round.
Which is bigger, A1 Envelope (US) or Envelope No. 6 3/4?
Envelope No. 6 3/4 — 92.075 × 165.1 mm against 92.075 × 130.175 mm, which is 26.8% more area.
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A1 Envelope (US) in full · Envelope No. 6 3/4 in full · All size comparisons · All paper sizes