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B6 vs A6 Envelope (US)

B6A6 Envelope (US)
Millimetres125 × 176120.65 × 165.1
Inches4.92 × 6.934.75 × 6.5
Centimetres12.5 × 17.612.1 × 16.5
Aspect ratio1:1.411:1.37
Area220 cm²199.2 cm²

Which is bigger

B6, by 10.4% in area. B6 is 4.3 mm wider than A6 Envelope (US). B6 is 10.9 mm taller.

Printing one on the other

A A6 Envelope (US) page fits inside B6 whole — print it at 100% and you get a 2.2 mm border down each side and 5.5 mm top and bottom.

You wantSet the print scale toLeaves
B6 artwork on A6 Envelope (US) paper93.8%3.4 × 0 mm margin
A6 Envelope (US) artwork on B6 paper103.6%0 × 4.9 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: B6 is 1:1.41 and A6 Envelope (US) is 1:1.37. 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 3.4 mm of unwanted margin.

Frequently asked questions

What is the difference between B6 and A6 Envelope (US)?

B6 is 125 × 176 mm and A6 Envelope (US) is 120.65 × 165.1 mm. B6 is the larger of the two by 10.4% in area.

Can I print B6 on A6 Envelope (US)?

Not at full size. Scale it to 93.8% and it fits inside A6 Envelope (US) with 3.4 × 0 mm to spare.

Which is bigger, B6 or A6 Envelope (US)?

B6 — 125 × 176 mm against 120.65 × 165.1 mm, which is 10.4% more area.

Related comparisons

B6 in full · A6 Envelope (US) in full · All size comparisons · All paper sizes