A4 vs Photo 8×10
| A4 | Photo 8×10 | |
|---|---|---|
| Millimetres | 210 × 297 | 203.2 × 254 |
| Inches | 8.27 × 11.69 | 8 × 10 |
| Centimetres | 21 × 29.7 | 20.3 × 25.4 |
| Aspect ratio | 1:1.41 | 1:1.25 |
| Area | 623.7 cm² | 516.1 cm² |
Which is bigger
A4, by 20.8% in area. A4 is 6.8 mm wider than Photo 8×10. A4 is 43 mm taller.
Printing one on the other
A Photo 8×10 page fits inside A4 whole — print it at 100% and you get a 3.4 mm border down each side and 21.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A4 artwork on Photo 8×10 paper | 85.5% | 23.6 × 0 mm margin |
| Photo 8×10 artwork on A4 paper | 103.3% | 0 × 34.5 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: A4 is 1:1.41 and Photo 8×10 is 1:1.25. 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 23.6 mm of unwanted margin.
Frequently asked questions
What is the difference between A4 and Photo 8×10?
A4 is 210 × 297 mm and Photo 8×10 is 203.2 × 254 mm. A4 is the larger of the two by 20.8% in area.
Can I print A4 on Photo 8×10?
Not at full size. Scale it to 85.5% and it fits inside Photo 8×10 with 23.6 × 0 mm to spare.
Which is bigger, A4 or Photo 8×10?
A4 — 210 × 297 mm against 203.2 × 254 mm, which is 20.8% more area.
A4 in full · Photo 8×10 in full · All size comparisons · All paper sizes