PPI Calculator
Calculate screen pixel density from size and resolution
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📊 Result Chart
About PPI Calculator
PPI (Pixels Per Inch) measures screen sharpness. Same resolution on a smaller screen = higher PPI = sharper image. Compare display quality across devices instantly.
How to Use
- Enter horizontal pixels (e.g. 1920)
- Enter vertical pixels (e.g. 1080)
- Enter diagonal size (inches)
- Click Calculate for PPI
FAQ
What PPI is sharp?
Phone >400 PPI(Retina), monitor >100 PPI, TV >50 PPI. Human eye limit ~300 PPI at 25cm.
PPI vs DPI?
PPI = screen pixel density. DPI = dots per inch for print. Similar numbers, different concepts.