C6 vs C7
| C6 | C7 | |
|---|---|---|
| Millimetres | 114 × 162 | 81 × 114 |
| Inches | 4.49 × 6.38 | 3.19 × 4.49 |
| Centimetres | 11.4 × 16.2 | 8.1 × 11.4 |
| Aspect ratio | 1:1.42 | 1:1.41 |
| Area | 184.7 cm² | 92.3 cm² |
Which is bigger
C6 and C7 are one step apart in the C series, so one is exactly twice the other. Two C7 sheets side by side make a C6, and folding a C6 in half across its long edge gives two C7. That is what the series is for, and it is why the scale factors below come out at 70.7% and 141.4% — one over the square root of two, and the square root of two.
C6 is 33 mm wider than C7. C6 is 48 mm taller.
Printing one on the other
A C7 page fits inside C6 whole — print it at 100% and you get a 16.5 mm border down each side and 24 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| C6 artwork on C7 paper | 70.4% | 0.8 × 0 mm margin |
| C7 artwork on C6 paper | 140.7% | 0 × 1.6 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: C6 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 0.8 mm of unwanted margin.
Frequently asked questions
What is the difference between C6 and C7?
C6 is 114 × 162 mm and C7 is 81 × 114 mm. C6 is the larger of the two by 100% in area.
Can I print C6 on C7?
Not at full size. Scale it to 70.4% and it fits inside C7 with 0.8 × 0 mm to spare.
Which is bigger, C6 or C7?
C6 — 114 × 162 mm against 81 × 114 mm, which is 100% more area.
Related comparisons
- C5 vs C7
- C6 vs DL
- C6 vs Junior Legal
- C6 vs Photo 4×6
- C6 vs Photo 5×7
- C6 vs C3
- C6 vs Envelope No. 10
- C6 vs A7 Envelope (US)
- C6 vs Mass Market
- C6 vs JIS B6
- C3 vs C7
- C7 vs Index Card 3×5
C6 in full · C7 in full · All size comparisons · All paper sizes