Display Resolution Calculator
Calculate pixel density (PPI), aspect ratio, total megapixels, and physical screen dimensions for any display. Enter the resolution and screen size to see detailed display specifications.
Understanding display resolution and pixel density helps you choose monitors, TVs, and mobile devices.
Key Metrics
- PPI (Pixels Per Inch): Higher PPI means sharper text and images. Most people cannot distinguish individual pixels above 300 PPI at normal viewing distance.
- Aspect Ratio: The proportional relationship between width and height. Common ratios: 16:9 (widescreen), 16:10 (productivity), 21:9 (ultrawide), 4:3 (classic).
Common Resolutions
- 720p (1280x720): HD, budget TVs
- 1080p (1920x1080): Full HD, most common
- 1440p (2560x1440): QHD, gaming monitors
- 4K (3840x2160): UHD, premium displays
- 8K (7680x4320): Ultra premium
PPI Examples
- 24" 1080p monitor: ~92 PPI
- 27" 4K monitor: ~163 PPI
- iPhone 15: ~460 PPI
- MacBook Pro 14": ~254 PPI