A5 vs A8 Envelope (US)

Q: Can I print A5 on A8 Envelope (US)?

Not at full size. Scale it to 94.4% and it fits inside A8 Envelope (US) with 0 × 8.2 mm to spare.

	A5	A8 Envelope (US)
Millimetres	148 × 210	139.7 × 206.375
Inches	5.83 × 8.27	5.5 × 8.13
Centimetres	14.8 × 21	14 × 20.6
Aspect ratio	1:1.42	1:1.48
Area	310.8 cm²	288.3 cm²

Which is bigger

A5, by 7.8% in area. A5 is 8.3 mm wider than A8 Envelope (US). A5 is 3.6 mm taller.

Printing one on the other

A A8 Envelope (US) page fits inside A5 whole — print it at 100% and you get a 4.2 mm border down each side and 1.8 mm top and bottom.

You want	Set the print scale to	Leaves
A5 artwork on A8 Envelope (US) paper	94.4%	0 × 8.2 mm margin
A8 Envelope (US) artwork on A5 paper	101.8%	5.8 × 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: A5 is 1:1.42 and A8 Envelope (US) is 1:1.48. 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 8.2 mm of unwanted margin.

Frequently asked questions

What is the difference between A5 and A8 Envelope (US)?

A5 is 148 × 210 mm and A8 Envelope (US) is 139.7 × 206.375 mm. A5 is the larger of the two by 7.8% in area.

Can I print A5 on A8 Envelope (US)?

Not at full size. Scale it to 94.4% and it fits inside A8 Envelope (US) with 0 × 8.2 mm to spare.

Which is bigger, A5 or A8 Envelope (US)?

A5 — 148 × 210 mm against 139.7 × 206.375 mm, which is 7.8% more area.

Related comparisons

A5 in full · A8 Envelope (US) in full · All size comparisons · All paper sizes