About the DPI Calculator
Dots per inch from pixel dimensions and print size, with the quality verdict.
Also known as: dots per inch calculator, print dpi, image dpi checker, resolution for printing.
How to use this calculator
- Enter pixel dimension, print dimension.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
DPI = pixels ÷ inches
Worked example
Using the values pre-filled in the calculator above:
- Pixel dimension = 3,000 px
- Print dimension = 10 inches
the calculator returns:
- DPI: 300
- Dots per centimetre: 118.11
- Quality: Excellent — photo quality
- Pixels needed for 300 DPI: 3,000