PPI calculator
Compare pixel density across different sizes and resolutions.
Your screen
Enter positive values in all three fields. The resolution must use whole pixels.
- Aspect ratio
- 16:9
- Total pixels
- 3,69 MP
Pixel density
PPI
Pixel pitch: 0,233 mm
What PPI measures
PPI indicates how many pixels fit in one inch of screen. Higher PPI means smaller pixels; it is not a monitor quality rating. Viewing distance, scaling and subpixel layout also affect how text looks.
PPI = √(width² + height²) / diagonal in inches
Pixel pitch is 25.4 / PPI, in millimetres. On this screen, a pixel spans approximately one arcminute at 80 cm. This is a geometric reference, not a recommended viewing distance.