24 × 36 inch poster size in pixels
24 × 36 inch poster is 24 × 36 in. In pixels that is 7200 × 10800 at 300 DPI for print and 1728 × 2592 at 72 DPI.
24 × 36 inches is the standard large poster size. It measures 24 × 36 in, or 609.6 × 914.4 mm.
| Resolution | Pixels (portrait) | With 0.125 in bleed | Megapixels | Uncompressed |
|---|---|---|---|---|
| 72 DPI | 1728 × 2592 | 1746 × 2610 | 4.5 | 13 MB |
| 96 DPI | 2304 × 3456 | 2328 × 3480 | 8 | 23 MB |
| 100 DPI | 2400 × 3600 | 2425 × 3625 | 8.6 | 25 MB |
| 150 DPI | 3600 × 5400 | 3638 × 5438 | 19 | 56 MB |
| 200 DPI | 4800 × 7200 | 4850 × 7250 | 35 | 99 MB |
| 240 DPI | 5760 × 8640 | 5820 × 8700 | 50 | 142 MB |
| 300 DPI | 7200 × 10800 | 7275 × 10875 | 78 | 222 MB |
| 400 DPI | 9600 × 14400 | 9700 × 14500 | 138 | 396 MB |
| 600 DPI | 14400 × 21600 | 14550 × 21750 | 311 | 890 MB |
| 1200 DPI | 28800 × 43200 | 29100 × 43500 | 1,244 | 3.48 GB |
Landscape is the same numbers the other way round. Pixels are rounded to the nearest whole pixel. The last column is 8-bit RGB before compression.
Which resolution to use for 24 × 36 inch poster
For print that will be held and read, use 300 DPI: 7200 × 10800 pixels, 78 megapixels. A sheet this large is usually seen from further back, so 150 DPI (3600 × 5400 pixels) is often enough and a quarter of the file. For a screen, the DPI number does nothing; only the pixel size matters.
Will a photo fill it?
- A 12 megapixel phone photo (4000 × 3000 pixels), cropped to fill 24 × 36 inch poster, prints at 111 DPI: visibly soft unless seen from across a room.
- A 24 megapixel camera photo (6000 × 4000 pixels), cropped to fill 24 × 36 inch poster, prints at 167 DPI: fine from a step back, a little soft up close.
- A 48 megapixel photo (8000 × 6000 pixels), cropped to fill 24 × 36 inch poster, prints at 222 DPI: fine from a step back, a little soft up close.