A7 vs C7
| A7 | C7 | |
|---|---|---|
| Millimetres | 74 × 105 | 81 × 114 |
| Inches | 2.91 × 4.13 | 3.19 × 4.49 |
| Centimetres | 7.4 × 10.5 | 8.1 × 11.4 |
| Aspect ratio | 1:1.42 | 1:1.41 |
| Area | 77.7 cm² | 92.3 cm² |
Which is bigger
C7, by 18.8% in area. C7 is 7 mm wider than A7. C7 is 9 mm taller.
Printing one on the other
A A7 page fits inside C7 whole — print it at 100% and you get a 3.5 mm border down each side and 4.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A7 artwork on C7 paper | 108.6% | 0.7 × 0 mm margin |
| C7 artwork on A7 paper | 91.4% | 0 × 0.9 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 is 1:1.42 and C7 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 0.7 mm of unwanted margin.
Frequently asked questions
What is the difference between A7 and C7?
A7 is 74 × 105 mm and C7 is 81 × 114 mm. C7 is the larger of the two by 18.8% in area.
Can I print A7 on C7?
Yes, at 100% — A7 is smaller on both edges, so it lands inside C7 with a border all round.
Which is bigger, A7 or C7?
C7 — 81 × 114 mm against 74 × 105 mm, which is 18.8% more area.
A7 in full · C7 in full · All size comparisons · All paper sizes