PRINT SIZE ANSWER · OCTOBER 2026
How Many Pixels Is 18×24 at 300 DPI?
5,400 × 7,200 pixels is the exact pixel target for a 18×24 inch print at 300 pixels per inch.
18×24 at 300 PPI = 5,400 × 7,200 pixels
The calculation is physical inches × pixels per inch. 18 × 300 = 5,400 pixels and 24 × 300 = 7,200 pixels. The file has a 3:4 aspect ratio.
18×24 pixel dimensions by print density
| Density | Pixel dimensions | Typical use |
|---|---|---|
| 300 PPI | 5,400 × 7,200 px | Fine art / close viewing |
| 240 PPI | 4,320 × 5,760 px | High quality |
| 200 PPI | 3,600 × 4,800 px | Very good |
| 150 PPI | 2,700 × 3,600 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 18×24 need cropping?
A file already using the 3:4 ratio can fill a 18×24 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 18×24 at 300 DPI?
5,400×7,200 pixels.
What aspect ratio is 18×24?
3:4.
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.