Photo print size calculator
Enter a photo’s pixel width and height, choose a print density, and calculate its print size in inches and centimeters.
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A digital photo has no fixed print size
The same 3000 × 2400 pixel photo is 10 × 8 inches at 300 PPI and 20 × 16 inches at 150 PPI. Changing this calculation does not add or remove image pixels.
What metadata changes
Editing resolution metadata without resampling changes the intended physical size, not the pixel array. Applications may still scale the image during layout or export.
What a camera file gives you on paper
A 24-megapixel camera file of 6000 by 4000 pixels prints 20 by 13.3 inches at 300 PPI, which covers everything up to a large framed print. The same file at 150 PPI covers 40 by 26.7 inches, enough for a poster seen from a few paces.
Phone photos land lower but not by as much as people expect: 4032 by 3024 pixels is 13.4 by 10.1 inches at 300 PPI. The real limit on an enlargement is usually focus, motion blur and noise in the original rather than the pixel count, and those get magnified along with everything else.
Frequently asked questions
Does this change my image file?
No. It is arithmetic on the numbers you type, and nothing is uploaded or altered. To make the size stick, set the document resolution in your editor or specify the placed size in your layout, then export.
The result is not a standard frame size. What now?
Standard frames rarely match camera proportions, and that gap is normal rather than a mistake. A 3:2 camera file cropped to 8 by 10 inches loses part of the long edge, so decide the crop deliberately in your editor instead of letting the printer choose it. The aspect ratio calculator shows which sizes fit without cropping.
How big can I print before it looks soft?
Further than the 300 PPI rule suggests, because viewing distance rises with print size. Prints around 150 PPI hold up well on a wall, and large-format work goes lower still. The honest test is to crop a small section at full size, print that piece and look at it from the distance the finished print will be seen.
Why do the centimetre figures look untidy?
Because PPI is defined per inch, so metric results are conversions of an imperial quantity and rarely land on round numbers. A 3000-pixel edge at 300 PPI is exactly 10 inches, which is 25.4 cm. If you need round metric dimensions, work backwards from the size with the print size to pixels calculator.