B3 vs Super A3
| B3 | Super A3 | |
|---|---|---|
| Millimetres | 353 × 500 | 329 × 483 |
| Inches | 13.9 × 19.69 | 12.95 × 19.02 |
| Centimetres | 35.3 × 50 | 32.9 × 48.3 |
| Aspect ratio | 1:1.42 | 1:1.47 |
| Area | 1765 cm² | 1589.1 cm² |
Which is bigger
B3, by 11.1% in area. B3 is 24 mm wider than Super A3. B3 is 17 mm taller.
Printing one on the other
A Super A3 page fits inside B3 whole — print it at 100% and you get a 12 mm border down each side and 8.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B3 artwork on Super A3 paper | 93.2% | 0 × 17 mm margin |
| Super A3 artwork on B3 paper | 103.5% | 12.4 × 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: B3 is 1:1.42 and Super A3 is 1:1.47. 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 17 mm of unwanted margin.
Frequently asked questions
What is the difference between B3 and Super A3?
B3 is 353 × 500 mm and Super A3 is 329 × 483 mm. B3 is the larger of the two by 11.1% in area.
Can I print B3 on Super A3?
Not at full size. Scale it to 93.2% and it fits inside Super A3 with 0 × 17 mm to spare.
Which is bigger, B3 or Super A3?
B3 — 353 × 500 mm against 329 × 483 mm, which is 11.1% more area.
B3 in full · Super A3 in full · All size comparisons · All paper sizes