Photo 8×12 paper size
203.2 × 304.8 mm
8 × 12 inches · 20.32 × 30.48 cm · aspect ratio 1:1.5
Photo 8×12 size is 203.2 × 304.8 mm. Those are the Photo 8×12 dimensions a printer works to; the same sheet in centimetres, inches, points and pixels is below.
It is written 8x12 and 8 by 12 as often as 8×12 — 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 Photo 8×12 is for
8 × 12 inches is the 2:3 enlargement — the size a full-frame or APS-C photograph prints at with nothing cropped, the same relationship 4 × 6 has at postcard scale. It is worth knowing because 8 × 10, the more commonly stocked frame, is 4:5 and does crop. If you are printing a composition you care about, 8 × 12 is the honest enlargement.
Photo 8×12 dimensions in every unit
| Unit | Width | Height |
|---|---|---|
| Millimetres | 203.2 mm | 304.8 mm |
| Centimetres | 20.32 cm | 30.48 cm |
| Inches | 8 in | 12 in |
| Points (PostScript) | 576 pt | 864 pt |
Photo 8×12 in pixels
Pixel dimensions depend entirely on the resolution you are working at — there is no single "pixel size" for a sheet of paper. Photo 8×12 size in pixels has every resolution, with file sizes and canvas setup.
| Resolution | Pixels | Use |
|---|---|---|
| 72 DPI | 576 × 864 | Screen preview only — far too coarse to print |
| 150 DPI | 1200 × 1800 | Draft printing, internal documents |
| 300 DPI | 2400 × 3600 | The standard for commercial print |
| 600 DPI | 4800 × 7200 | 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 Photo 8×12 relates to the rest of the series
At 203.2 × 304.8 mm (8 × 12 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 A4 at 210 × 297 mm — this size is 1% smaller. The proportions differ, though: A4 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 Photo 8×12
8 × 12 inches — the 2:3 enlargement that needs no cropping.
Other Photo prints sizes
| Size | Millimetres | Inches |
|---|---|---|
| Photo 4×6 | 101.6 × 152.4 mm | 4 × 6 in |
| Photo 5×7 | 127 × 177.8 mm | 5 × 7 in |
| Photo 8×10 | 203.2 × 254 mm | 8 × 10 in |
| Photo 6×8 | 152.4 × 203.2 mm | 6 × 8 in |
| Photo 11×14 | 279.4 × 355.6 mm | 11 × 14 in |
| Photo 16×20 | 406.4 × 508 mm | 16 × 20 in |
Frequently asked questions
What size is Photo 8×12 in mm?
203.2 × 304.8 mm.
What size is Photo 8×12 in inches?
8 × 12 inches.
What size is Photo 8×12 in pixels?
There is no single answer — it depends on resolution. At the print standard of 300 DPI it is 2400 × 3600 pixels; at 72 DPI it is only 576 × 864.