A2 vs JIS B3
| A2 | JIS B3 | |
|---|---|---|
| Millimetres | 420 × 594 | 364 × 515 |
| Inches | 16.54 × 23.39 | 14.33 × 20.28 |
| Centimetres | 42 × 59.4 | 36.4 × 51.5 |
| Aspect ratio | 1:1.41 | 1:1.41 |
| Area | 2494.8 cm² | 1874.6 cm² |
Which is bigger
A2, by 33.1% in area. A2 is 56 mm wider than JIS B3. A2 is 79 mm taller.
Printing one on the other
A JIS B3 page fits inside A2 whole — print it at 100% and you get a 28 mm border down each side and 39.5 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| A2 artwork on JIS B3 paper | 86.7% | 0 × 0.2 mm margin |
| JIS B3 artwork on A2 paper | 115.3% | 0.2 × 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
Both sheets have the same 1:1.41 proportions, so artwork scales between them without any cropping or extra margin — only the size changes.
Frequently asked questions
What is the difference between A2 and JIS B3?
A2 is 420 × 594 mm and JIS B3 is 364 × 515 mm. A2 is the larger of the two by 33.1% in area.
Can I print A2 on JIS B3?
Not at full size. Scale it to 86.7% and it fits inside JIS B3 with 0 × 0.2 mm to spare.
Which is bigger, A2 or JIS B3?
A2 — 420 × 594 mm against 364 × 515 mm, which is 33.1% more area.
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A2 in full · JIS B3 in full · All size comparisons · All paper sizes