Half Letter vs US Trade 6×9
| Half Letter | US Trade 6×9 | |
|---|---|---|
| Millimetres | 139.7 × 215.9 | 152.4 × 228.6 |
| Inches | 5.5 × 8.5 | 6 × 9 |
| Centimetres | 14 × 21.6 | 15.2 × 22.9 |
| Aspect ratio | 1:1.55 | 1:1.5 |
| Area | 301.6 cm² | 348.4 cm² |
Which is bigger
US Trade 6×9, by 15.5% in area. US Trade 6×9 is 12.7 mm wider than Half Letter. US Trade 6×9 is 12.7 mm taller.
Printing one on the other
A Half Letter page fits inside US Trade 6×9 whole — print it at 100% and you get a 6.4 mm border down each side and 6.3 mm top and bottom.
| You want | Set the print scale to | Leaves |
|---|---|---|
| Half Letter artwork on US Trade 6×9 paper | 105.9% | 4.5 × 0 mm margin |
| US Trade 6×9 artwork on Half Letter paper | 91.7% | 0 × 6.4 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: Half Letter is 1:1.55 and US Trade 6×9 is 1:1.5. 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 4.5 mm of unwanted margin.
Frequently asked questions
What is the difference between Half Letter and US Trade 6×9?
Half Letter is 139.7 × 215.9 mm and US Trade 6×9 is 152.4 × 228.6 mm. US Trade 6×9 is the larger of the two by 15.5% in area.
Can I print Half Letter on US Trade 6×9?
Yes, at 100% — Half Letter is smaller on both edges, so it lands inside US Trade 6×9 with a border all round.
Which is bigger, Half Letter or US Trade 6×9?
US Trade 6×9 — 152.4 × 228.6 mm against 139.7 × 215.9 mm, which is 15.5% more area.
Half Letter in full · US Trade 6×9 in full · All size comparisons · All paper sizes