B3 vs ANSI C
| B3 | ANSI C | |
|---|---|---|
| Millimetres | 353 × 500 | 431.8 × 558.8 |
| Inches | 13.9 × 19.69 | 17 × 22 |
| Centimetres | 35.3 × 50 | 43.2 × 55.9 |
| Aspect ratio | 1:1.42 | 1:1.29 |
| Area | 1765 cm² | 2412.9 cm² |
Which is bigger
ANSI C, by 36.7% in area. ANSI C is 78.8 mm wider than B3. ANSI C is 58.8 mm taller.
Printing one on the other
A B3 page fits inside ANSI C whole — print it at 100% and you get a 39.4 mm border down each side and 29.4 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| B3 artwork on ANSI C paper | 111.8% | 37.3 × 0 mm margin |
| ANSI C artwork on B3 paper | 81.8% | 0 × 43.2 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 ANSI C is 1:1.29. 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 37.3 mm of unwanted margin.
Frequently asked questions
What is the difference between B3 and ANSI C?
B3 is 353 × 500 mm and ANSI C is 431.8 × 558.8 mm. ANSI C is the larger of the two by 36.7% in area.
Can I print B3 on ANSI C?
Yes, at 100% — B3 is smaller on both edges, so it lands inside ANSI C with a border all round.
Which is bigger, B3 or ANSI C?
ANSI C — 431.8 × 558.8 mm against 353 × 500 mm, which is 36.7% more area.
B3 in full · ANSI C in full · All size comparisons · All paper sizes