JIS B5 vs A10 Envelope (US)

Q: Can I print JIS B5 on A10 Envelope (US)?

Not at full size. Scale it to 83.7% and it fits inside A10 Envelope (US) with 0 × 26.1 mm to spare.

Q: Which is bigger, JIS B5 or A10 Envelope (US)?

JIS B5 — 182 × 257 mm against 152.4 × 241.3 mm, which is 27.2% more area.

	JIS B5	A10 Envelope (US)
Millimetres	182 × 257	152.4 × 241.3
Inches	7.17 × 10.12	6 × 9.5
Centimetres	18.2 × 25.7	15.2 × 24.1
Aspect ratio	1:1.41	1:1.58
Area	467.7 cm²	367.7 cm²

Which is bigger

JIS B5, by 27.2% in area. JIS B5 is 29.6 mm wider than A10 Envelope (US). JIS B5 is 15.7 mm taller.

Printing one on the other

A A10 Envelope (US) page fits inside JIS B5 whole — print it at 100% and you get a 14.8 mm border down each side and 7.8 mm top and bottom.

You want	Set the print scale to	Leaves
JIS B5 artwork on A10 Envelope (US) paper	83.7%	0 × 26.1 mm margin
A10 Envelope (US) artwork on JIS B5 paper	106.5%	19.7 × 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: JIS B5 is 1:1.41 and A10 Envelope (US) is 1:1.58. 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 26.1 mm of unwanted margin.

Frequently asked questions

What is the difference between JIS B5 and A10 Envelope (US)?

JIS B5 is 182 × 257 mm and A10 Envelope (US) is 152.4 × 241.3 mm. JIS B5 is the larger of the two by 27.2% in area.

Can I print JIS B5 on A10 Envelope (US)?

Not at full size. Scale it to 83.7% and it fits inside A10 Envelope (US) with 0 × 26.1 mm to spare.

Which is bigger, JIS B5 or A10 Envelope (US)?

JIS B5 — 182 × 257 mm against 152.4 × 241.3 mm, which is 27.2% more area.

Related comparisons

JIS B5 in full · A10 Envelope (US) in full · All size comparisons · All paper sizes