Creative Tools
DPI Calculator
Enter pixels and print size to get DPI, or set a target DPI to see required pixels.
DPI for print
DPI (dots per inch) links pixel dimensions to physical print size: inches = pixels ÷ DPI. Higher DPI yields a smaller print from the same file, or demands more pixels for the same poster. 300 DPI is a common photo-lab starting point; large wall graphics viewed from further away often use 150 DPI or less. This calculator converts between pixels, DPI and print size so you know whether to resample, crop or order a smaller print. Continue with print size and aspect ratio for layout, and add print bleed before sending to press. Soft or heavily compressed sources still look soft at ‘enough’ DPI. Upscaling tools add pixels before the DPI formula applies — judge artefacts with your eyes, not only the arithmetic. Not a colour-management tutorial. Labs sometimes soft-proof at a viewing-distance assumption; ask if your poster will be seen from arm’s length or across a room.
Worked example
A 6000 × 4000 px image at 300 DPI prints at 20 × 13.33 inches. At 150 DPI the same file prints at 40 × 26.67 inches. To fill a 24-inch-wide sheet at 300 DPI you need 24 × 300 = 7,200 px across — so a 6000 px side falls short without resampling or a larger viewing distance.
Limits and assumptions
Does not judge focus, noise or compression. Printers may use device dots differently from file DPI metadata. Borderless printing can crop edges.
Frequently asked questions
What DPI should I use for photo prints?
300 DPI is a common lab target for close viewing; confirm with your lab.
How do I find print size from pixels?
Use the print size calculator. This page takes a finished print size in centimetres or inches, matching the header toggle.
How do I find required pixels?
Enter the print size in the active units and a target DPI. The tool converts that size to inches, then multiplies by the target.
Is 72 DPI for web still a rule?
Screens are not really ‘72 DPI’ anymore; export pixel dimensions for the layout instead.
Does metadata DPI matter on Instagram?
Social platforms ignore print DPI; pixel count and crop matter on screen.