Calculate DPI, PPI & Screen Resolution
How to Use
1
Enter Resolution
Input screen width and height in pixels (e.g., 1920 × 1080).
2
Enter Screen Size
Input diagonal screen size in inches (e.g., 24 inches).
3
Calculate
Get PPI, total pixels, aspect ratio, and more.
Understanding PPI & DPI
PPI (Pixels Per Inch)
Measures pixel density of a screen. Higher PPI = sharper display.
PPI = √(width² + height²) / diagonal
Common Resolutions
- Full HD: 1920 × 1080 (2.1 MP)
- 2K: 2560 × 1440 (3.7 MP)
- 4K UHD: 3840 × 2160 (8.3 MP)
- 8K UHD: 7680 × 4320 (33.2 MP)