Photo 4×6 vs A6 Envelope (US)

Q: Which is bigger, Photo 4×6 or A6 Envelope (US)?

A6 Envelope (US) — 120.65 × 165.1 mm against 101.6 × 152.4 mm, which is 28.6% more area.

	Photo 4×6	A6 Envelope (US)
Millimetres	101.6 × 152.4	120.65 × 165.1
Inches	4 × 6	4.75 × 6.5
Centimetres	10.2 × 15.2	12.1 × 16.5
Aspect ratio	1:1.5	1:1.37
Area	154.8 cm²	199.2 cm²

Which is bigger

A6 Envelope (US), by 28.6% in area. A6 Envelope (US) is 19.1 mm wider than Photo 4×6. A6 Envelope (US) is 12.7 mm taller.

Printing one on the other

A Photo 4×6 page fits inside A6 Envelope (US) whole — print it at 100% and you get a 9.5 mm border down each side and 6.3 mm top and bottom.

You want	Set the print scale to	Leaves
Photo 4×6 artwork on A6 Envelope (US) paper	108.3%	10.6 × 0 mm margin
A6 Envelope (US) artwork on Photo 4×6 paper	84.2%	0 × 13.4 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: Photo 4×6 is 1:1.5 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 10.6 mm of unwanted margin.

Frequently asked questions

What is the difference between Photo 4×6 and A6 Envelope (US)?

Photo 4×6 is 101.6 × 152.4 mm and A6 Envelope (US) is 120.65 × 165.1 mm. A6 Envelope (US) is the larger of the two by 28.6% in area.

Can I print Photo 4×6 on A6 Envelope (US)?

Yes, at 100% — Photo 4×6 is smaller on both edges, so it lands inside A6 Envelope (US) with a border all round.

Which is bigger, Photo 4×6 or A6 Envelope (US)?

A6 Envelope (US) — 120.65 × 165.1 mm against 101.6 × 152.4 mm, which is 28.6% more area.

Related comparisons

Photo 4×6 in full · A6 Envelope (US) in full · All size comparisons · All paper sizes