Quick answer: For a sharp 16 × 20-inch print at 300 PPI, aim for 4800 × 6000 pixels. A well-focused image can still print successfully with fewer pixels, especially when viewed from farther away.
16 × 20 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 strong 16×20 result with about 16.7% removed from the long edge.
Generally suitable for wall display if the original is sharp.
An exact 16×20 match at the high-quality target.
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 16 × 20 print has a 4:5 aspect ratio. A standard 3:2 camera photo loses about 16.7% of its long dimension when cropped to 4:5. A 4:3 image loses about 6.3%. This matters more when a face or other subject sits near an edge.
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 16×20 is often viewed on a wall from several feet away. Around 240 PPI is a strong target, while 180 PPI can be perfectly usable for a sharp photograph at normal wall-viewing distance.
- 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 16 × 20 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 16 × 20 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.