Free Screen Resolution Calculator
Calculate screen PPI, aspect ratio, and total pixels instantly. No registration, runs 100% locally in your browser.
Display Specifications
High pixel density yields sharper texts and UI designs.
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How Screen Resolution Calculator Works
Enter the horizontal and vertical screen resolution (e.g. 1920 x 1080).
Specify the physical diagonal screen size in inches (e.g. 15.6).
Review the calculated PPI, total pixel counts, and aspect ratios instantly.
Frequently Asked Questions
PPI stands for Pixels Per Inch. A higher PPI means the display has higher pixel density, yielding sharper images and text. It is critical for web/UI layout designers.
We use the Pythagorean theorem to calculate the diagonal resolution in pixels, and divide that by the physical diagonal inches: PPI = sqrt(w^2 + h^2) / diagonal.
Yes! The calculator outputs standard definitions (e.g. Full HD, 4K, Retina display thresholds) for your calculations.
It is only required to calculate the physical density (PPI). You can leave it blank if you only want aspect ratios and total pixel counts.
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