Toolman

Half Letter vs Photo 6×8

Half LetterPhoto 6×8
Millimetres139.7 × 215.9152.4 × 203.2
Inches5.5 × 8.56 × 8
Centimetres14 × 21.615.2 × 20.3
Aspect ratio1:1.551:1.33
Area301.6 cm²309.7 cm²

Which is bigger

Photo 6×8, by 2.7% in area. Photo 6×8 is 12.7 mm wider than Half Letter. Half Letter is 12.7 mm taller.

Printing one on the other

Neither sheet fits inside the other at full size: Photo 6×8 is the wider of the two while Half Letter is the taller, so each overruns the other on one edge. Whichever way you go, something has to scale or crop.

You wantSet the print scale toLeaves
Half Letter artwork on Photo 6×8 paper94.1%20.9 × 0 mm margin
Photo 6×8 artwork on Half Letter paper91.7%0 × 29.6 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: Half Letter is 1:1.55 and Photo 6×8 is 1:1.33. 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 20.9 mm of unwanted margin.

Frequently asked questions

What is the difference between Half Letter and Photo 6×8?

Half Letter is 139.7 × 215.9 mm and Photo 6×8 is 152.4 × 203.2 mm. Photo 6×8 is the larger of the two by 2.7% in area.

Can I print Half Letter on Photo 6×8?

Not at full size. Scale it to 94.1% and it fits inside Photo 6×8 with 20.9 × 0 mm to spare.

Which is bigger, Half Letter or Photo 6×8?

Photo 6×8 — 152.4 × 203.2 mm against 139.7 × 215.9 mm, which is 2.7% more area.

Half Letter in full · Photo 6×8 in full · All size comparisons · All paper sizes