Quick answer: For a sharp 24 × 36-inch print at 300 PPI, aim for 7200 × 10800 pixels. A well-focused image can still print successfully with fewer pixels, especially when viewed from farther away.
24 × 36 pixel dimensions by quality
Multiply each print dimension in inches by the target PPI. For example, 10 inches × 300 PPI = 3000 pixels. These are pixel targets before any extra trim required by the print lab.
How real photo files compare
A practical wall-print result when viewed from a few feet away.
Below the preferred range; best viewed from farther away or carefully upscaled.
Meets the wall-viewing target without changing the aspect ratio.
Examples assume the print is oriented to match the photo. Effective PPI is calculated after fitting the image to the selected aspect ratio without upscaling.
Will your photo need cropping?
A 24 × 36 print has a 2:3 aspect ratio. This matches the common 3:2 DSLR and mirrorless photo ratio, so those files normally fit without cropping. A 4:3 phone photo needs about 11.1% removed from its short dimension to become 3:2.
A centered crop removes material from only one direction: left and right when the photo is too wide, or top and bottom when it is too tall. Review the final crop because print labs may also trim a small amount at the edges.
What viewing distance changes
A 24×36 poster is normally viewed from farther away than a small photo. Around 150–240 PPI is a practical range for many wall displays; use the higher end when the print will be inspected closely or contains small text.
- 300 PPI: ideal when fine detail will be examined up close.
- 240 PPI: a strong practical target for most photographic prints.
- 180 PPI: often useful for wall prints at a normal viewing distance.
- 150 PPI: best reserved for larger display prints seen from farther away.
PPI is not the whole quality test
A high PPI cannot repair missed focus, motion blur, aggressive compression or heavy noise reduction. Inspect eyes, hair, text and other important details at 100% before ordering an expensive print. If a lab offers a resolution warning, treat it as another useful check.
Frequently asked questions
Is 300 PPI required for a 24 × 36 print?
No. 300 PPI is an excellent close-viewing target, but 240 PPI is often very sharp and lower effective resolutions can work for prints viewed from farther away. The photo itself and the print lab also affect the result.
Does changing 72 DPI to 300 DPI improve the photo?
Not by itself. Changing the metadata without resampling does not create new image detail. Check the file's actual pixel dimensions against the final print size.
Should I crop before ordering a 24 × 36 print?
Review the lab's crop preview before ordering. Crop first when subject placement matters, and keep faces, text and other important details away from the trim edge.