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ARCH A vs JIS B5

ARCH AJIS B5
Millimetres228.6 × 304.8182 × 257
Inches9 × 127.17 × 10.12
Centimetres22.9 × 30.518.2 × 25.7
Aspect ratio1:1.331:1.41
Area696.8 cm²467.7 cm²

Which is bigger

ARCH A, by 49% in area. ARCH A is 46.6 mm wider than JIS B5. ARCH A is 47.8 mm taller.

Printing one on the other

A JIS B5 page fits inside ARCH A whole — print it at 100% and you get a 23.3 mm border down each side and 23.9 mm top and bottom.

You wantSet the print scale toLeaves
ARCH A artwork on JIS B5 paper79.6%0 × 14.3 mm margin
JIS B5 artwork on ARCH A paper118.6%12.7 × 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: ARCH A is 1:1.33 and JIS B5 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 14.3 mm of unwanted margin.

Frequently asked questions

What is the difference between ARCH A and JIS B5?

ARCH A is 228.6 × 304.8 mm and JIS B5 is 182 × 257 mm. ARCH A is the larger of the two by 49% in area.

Can I print ARCH A on JIS B5?

Not at full size. Scale it to 79.6% and it fits inside JIS B5 with 0 × 14.3 mm to spare.

Which is bigger, ARCH A or JIS B5?

ARCH A — 228.6 × 304.8 mm against 182 × 257 mm, which is 49% more area.

Related comparisons

ARCH A in full · JIS B5 in full · All size comparisons · All paper sizes