PRINT SIZE ANSWER · OCTOBER 2026
How Many Pixels Is 12×18 at 300 DPI?
3,600 × 5,400 pixels is the exact pixel target for a 12×18 inch print at 300 pixels per inch.
12×18 at 300 PPI = 3,600 × 5,400 pixels
The calculation is physical inches × pixels per inch. 12 × 300 = 3,600 pixels and 18 × 300 = 5,400 pixels. The file has a 2:3 aspect ratio.
12×18 pixel dimensions by print density
| Density | Pixel dimensions | Typical use |
|---|---|---|
| 300 PPI | 3,600 × 5,400 px | Fine art / close viewing |
| 240 PPI | 2,880 × 4,320 px | High quality |
| 200 PPI | 2,400 × 3,600 px | Very good |
| 150 PPI | 1,800 × 2,700 px | Large wall art / distance |
These values are mathematical targets. Actual print quality also depends on source detail, sharpening, viewing distance, printer, paper and any resampling applied before printing.
Does 12×18 need cropping?
A file already using the 2:3 ratio can fill a 12×18 print without ratio-based cropping. A file with a different ratio must be trimmed, bordered or otherwise fitted.
Frequently asked questions
How many pixels is 12×18 at 300 DPI?
3,600×5,400 pixels.
What aspect ratio is 12×18?
2:3.
Is 300 DPI required for every print?
No. 300 PPI is a common high-detail target, while lower effective PPI can still work for larger wall art viewed from farther away.