US Trade 6×9 paper size
152.4 × 228.6 mm
6 × 9 inches · 15.24 × 22.86 cm · aspect ratio 1:1.5
US Trade 6×9 size is 152.4 × 228.6 mm. Those are the US Trade 6×9 dimensions a printer works to; the same sheet in centimetres, inches, points and pixels is below.
It is written 6x9 and 6 by 9 as often as 6×9 — the same sheet however it is typed. Sizes named by their inches like this one get asked for by the numbers rather than by a letter code, which is why the spelling varies and the sheet does not.
What US Trade 6×9 is for
6 × 9 inches is the default trim for a US trade paperback and the size almost every print-on-demand service lists first. It is the size most non-fiction is published at, holds around 300 words a page at a comfortable type size, and is the safe choice if you have no reason to pick another — a manuscript laid out for it will not need re-flowing when a printer is chosen.
US Trade 6×9 dimensions in every unit
| Unit | Width | Height |
|---|---|---|
| Millimetres | 152.4 mm | 228.6 mm |
| Centimetres | 15.24 cm | 22.86 cm |
| Inches | 6 in | 9 in |
| Points (PostScript) | 432 pt | 648 pt |
US Trade 6×9 in pixels
Pixel dimensions depend entirely on the resolution you are working at — there is no single "pixel size" for a sheet of paper. US Trade 6×9 size in pixels has every resolution, with file sizes and canvas setup.
| Resolution | Pixels | Use |
|---|---|---|
| 72 DPI | 432 × 648 | Screen preview only — far too coarse to print |
| 150 DPI | 900 × 1350 | Draft printing, internal documents |
| 300 DPI | 1800 × 2700 | The standard for commercial print |
| 600 DPI | 3600 × 5400 | Fine detail, line art, archival scanning |
Setting up a print document? Use 300 DPI and add 3 mm of bleed on every edge unless your printer specifies otherwise.
How US Trade 6×9 relates to the rest of the series
At 152.4 × 228.6 mm (6 × 9 inches) the aspect ratio is 1:1.500. This size is not part of a halving series, so there is no fixed scaling factor to the next size up or down — each one is defined on its own terms.
The closest ISO sheet by area is A5 at 148 × 210 mm — this size is 12% larger. The proportions differ, though: A5 is 1:1.414 like every A size, and this one is 1:1.500, so content laid out for one does not fill the other without cropping or white space.
About US Trade 6×9
6 × 9 inches, the default trim for a US trade paperback.
Other Book trim sizes sizes
| Size | Millimetres | Inches |
|---|---|---|
| Mass Market | 107.95 × 174.5 mm | 4.25 × 6.87 in |
Frequently asked questions
What size is US Trade 6×9 in mm?
152.4 × 228.6 mm.
What size is US Trade 6×9 in inches?
6 × 9 inches.
What size is US Trade 6×9 in pixels?
There is no single answer — it depends on resolution. At the print standard of 300 DPI it is 1800 × 2700 pixels; at 72 DPI it is only 432 × 648.