What is the ppi of screen resolution?

PPI, or pixels per inch, is a measurement that indicates the pixel density of a screen, determining how many pixels are displayed in one inch of the screen. A higher PPI means more pixels are packed into each inch, resulting in sharper and more detailed images. PPI is essential for assessing display quality, especially in devices like smartphones, tablets, and monitors. To calculate PPI, you can use the formula: PPI = √(width² + height²) / diagonal size (in inches).