Print Resolution Calculator
Enter your image pixel dimensions and a target DPI to see the largest sharp print size in inches and centimetres, along with the total megapixels.
How to use the print resolution calculator
- Enter your image width and height in pixels.
- Set the target print resolution in DPI, usually 300 for photos.
- Read the maximum print size in inches and centimetres.
Examples
24 MP photo at 300 DPI
6000 x 4000 px, 300 DPI
20 x 13.33 in (50.8 x 33.87 cm)
Same file at 240 DPI
6000 x 4000 px, 240 DPI
25 x 16.67 in (larger print)
Frequently asked questions
How do I work out print size from pixels?
Divide each pixel dimension by the target DPI. A 6000 by 4000 pixel image at 300 DPI prints at 20 by 13.33 inches.
What DPI should I print at?
300 DPI is the standard for sharp photo prints viewed up close. Large prints viewed from a distance, such as posters, look fine at 150 to 240 DPI.
What is the difference between DPI and PPI?
PPI describes pixels in a digital image while DPI describes dots a printer lays down. For sizing a print they are used interchangeably, and this tool treats them the same.
Does a lower DPI give a bigger print?
Yes. Spreading the same pixels over fewer dots per inch makes a larger print, but past a point the individual pixels become visible up close.
How many megapixels do I need for a given print?
Multiply the print width and height in inches by the DPI, then multiply those pixel counts and divide by one million. An 8 by 10 inch print at 300 DPI needs about 7.2 megapixels.
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