Design & Multimedia
DPI Calculator
Calculate DPI and print sizes
Created and maintained by: CalcTago Editorial TeamLast updated: 2026-02-13
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
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Frequently asked questions
What does the DPI Calculator do?
It helps you calculate DPI and print sizes.
What inputs do I need?
Enter Pixel width, Pixel height, and Diagonal size.
Are decimals supported?
Yes, you can use decimal values where appropriate.
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About this tool
This DPI Calculator turns your inputs into practical results. Provide Pixel height, Pixel width, and Diagonal size to calculate Height and DPI.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.