B7 vs A1 Envelope (US)
| B7 | A1 Envelope (US) | |
|---|---|---|
| Millimetres | 88 × 125 | 92.075 × 130.175 |
| Inches | 3.46 × 4.92 | 3.63 × 5.13 |
| Centimetres | 8.8 × 12.5 | 9.2 × 13 |
| Aspect ratio | 1:1.42 | 1:1.41 |
| Area | 110 cm² | 119.9 cm² |
Which is bigger
A1 Envelope (US), by 9% in area. A1 Envelope (US) is 4.1 mm wider than B7. A1 Envelope (US) is 5.2 mm taller.
Printing one on the other
A B7 page fits inside A1 Envelope (US) whole — print it at 100% and you get a 2 mm border down each side and 2.6 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B7 artwork on A1 Envelope (US) paper | 104.1% | 0.4 × 0 mm margin |
| A1 Envelope (US) artwork on B7 paper | 95.6% | 0 × 0.6 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: B7 is 1:1.42 and A1 Envelope (US) is 1:1.41. 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 0.4 mm of unwanted margin.
Frequently asked questions
What is the difference between B7 and A1 Envelope (US)?
B7 is 88 × 125 mm and A1 Envelope (US) is 92.075 × 130.175 mm. A1 Envelope (US) is the larger of the two by 9% in area.
Can I print B7 on A1 Envelope (US)?
Yes, at 100% — B7 is smaller on both edges, so it lands inside A1 Envelope (US) with a border all round.
Which is bigger, B7 or A1 Envelope (US)?
A1 Envelope (US) — 92.075 × 130.175 mm against 88 × 125 mm, which is 9% more area.
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B7 in full · A1 Envelope (US) in full · All size comparisons · All paper sizes