guide
Photo Printing Sizes
Choose photo print sizes with the right aspect ratio, pixel dimensions, PPI target, and crop-aware file preparation.
Last checked: 2026-05-01
Quick answer
Copy-ready answer
For sharp photo prints, match the photo ratio to the print size and aim for enough pixels at the viewing distance. A common close-viewed target is 300 PPI, so 4 x 6 in needs about 1200 x 1800 px and 8 x 10 in needs about 2400 x 3000 px.
Dimensions and specs
| 4 x 6 at 300 PPI | 1200 x 1800 px | |
|---|---|---|
| 5 x 7 at 300 PPI | 1500 x 2100 px | |
| 8 x 10 at 300 PPI | 2400 x 3000 px | |
| Main crop cause | Photo ratio does not match print ratio | |
| Quality default | 300 PPI for close-viewed prints |
Formula
How to calculate this size
Convert physical size to inches, then multiply each side by the target PPI.
Match the target aspect ratio before exporting to avoid unexpected crop or padding.
Add bleed to both sides of each dimension before calculating the final canvas.
Common mistakes
Avoid these photo printing sizes problems
Confirm whether the final output is print, upload, screen, or a template.
A size mismatch creates crop, padding, or distortion at export.
Confirm sources, limits, and output settings before sending the file onward.
For close-viewed prints, 300 PPI is a useful planning target. Multiply each print side in inches by 300 to estimate the pixel dimensions. Lower PPI can still work for casual prints, large wall prints, or images viewed farther away, but fine details may look softer up close.
Before ordering, crop intentionally. Keep faces, hands, text, and important details away from the trim edge. If you do not want to crop, choose a print size with the same ratio as the photo or add a border. Export a high-quality JPG for photos unless the print provider asks for a different format.
Workflow
Use Photo Printing Sizes in a finished file
Start with where the file will be printed, uploaded, displayed, or delivered.
Use the dimensions, pixel target, aspect ratio, and formula before building the file.
Preview the final file against the required size, crop behavior, and source notes.
Related
Related pages and tools
Same branch
Nearby pages
FAQ
Common questions
How many pixels do I need for a photo print?
Multiply the print size in inches by the target PPI. At 300 PPI, a 4 x 6 print needs about 1200 x 1800 px and an 8 x 10 print needs about 2400 x 3000 px.
Why did my photo get cropped by the print lab?
The photo aspect ratio probably did not match the selected print size. Crop intentionally before ordering, choose a matching ratio, or add borders.
Is 300 PPI always required?
No. It is a good close-viewed target, but larger wall prints can often use lower effective PPI because they are viewed from farther away.
Should I resize before uploading to a print lab?
Only if the lab asks for specific pixels or your file is extremely large. Usually the more important step is choosing the right crop and enough original resolution.
References
Sources and references
Based on standard aspect-ratio math, common 300 PPI photo-print planning, and Adobe Photoshop image size guidance for pixel dimensions and print resolution. Exact requirements vary by print lab, paper, and viewing distance.
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Adobe Photoshop image size and resolution
Used for pixel dimensions, image resolution, resampling, and print PPI concepts.
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U.S. Department of State: passport photos
Used for U.S. passport photo physical size and composition requirements.
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GOV.UK: passport photo requirements
Used for U.K. passport photo size and composition requirements.
Last checked: 2026-05-01