| Display | |
|---|---|
| PPI | pixels per in |
| PPI² | pixels per in² |
| Diagonal | pixels |
| Dot Pitch | millimeters mm |
| Total | pixels px |
| Total | megapixels MP |
| Aspect Ratio | common |
| Aspect Ratio | actual |
Welcome to our Display PPI Calculator tool – the ultimate resource for determining and understanding your screen’s pixel density and specifications.
What is PPI?
PPI (Pixels Per Inch) is a measurement of pixel density that directly impacts the clarity and sharpness of your display. Higher PPI values mean more pixels are packed into each inch of screen space, resulting in sharper text and crisper images.
Why PPI Matters
- For designers: Ensure your designs appear as intended across different screens
- For developers: Optimize your applications for various display densities
- For consumers: Make informed purchasing decisions about monitors, tablets, and smartphones
- For photographers: Understand how your images will appear on different displays
How We Calculate PPI
Our calculator uses a precise mathematical formula to determine PPI (Pixels Per Inch):
PPI = √(width² + height²) ÷ diagonal
Where:
- Width and height represent the number of pixels in each dimension
- Diagonal is the physical screen size measured in inches (or converted from cm/mm)
The result gives you the exact number of pixels packed into each inch of your display.
How to Use Our Calculator
Simply enter your display’s width and height in pixels, along with the diagonal screen size. Choose your preferred measurement unit (inches, cm, or mm), click “Calculate,” and instantly receive comprehensive display metrics including:
- PPI (Pixels Per Inch)
- Diagonal resolution
- Dot pitch
- Total pixels
- Aspect ratio
- And more!
Popular Device PPI Values
Different devices offer varying levels of pixel density:
Popular Device PPI Comparison
| Device | Resolution | Size (diagonal) | PPI |
|---|---|---|---|
| iPhone 15 Pro | 2556 × 1179 | 6.1″ | 460 |
| iPhone 15 Pro Max | 2796 × 1290 | 6.7″ | 460 |
| Samsung Galaxy S24 Ultra | 3120 × 1440 | 6.8″ | 505 |
| Samsung Galaxy S24 | 2340 × 1080 | 6.2″ | 416 |
| Google Pixel 8 Pro | 2992 × 1344 | 6.7″ | 489 |
| OnePlus 12 | 3168 × 1440 | 6.82″ | 510 |
| iPad Pro 12.9″ | 2732 × 2048 | 12.9″ | 264 |
| iPad Air | 2360 × 1640 | 10.9″ | 264 |
| Samsung Galaxy Tab S9 Ultra | 2960 × 1848 | 14.6″ | 240 |
| MacBook Pro 16″ | 3456 × 2234 | 16.2″ | 254 |
| MacBook Air 13″ | 2560 × 1664 | 13.6″ | 224 |
| Dell XPS 13 | 3840 × 2400 | 13.4″ | 338 |
| 4K Monitor | 3840 × 2160 | 27″ | 163 |
| 5K Monitor | 5120 × 2880 | 27″ | 218 |
| 1440p Monitor | 2560 × 1440 | 27″ | 109 |
| 1080p Monitor | 1920 × 1080 | 24″ | 92 |
| 4K TV | 3840 × 2160 | 55″ | 80 |
| 4K TV | 3840 × 2160 | 65″ | 68 |
| 1080p TV | 1920 × 1080 | 55″ | 40 |
| 8K TV | 7680 × 4320 | 75″ | 117 |
Note: PPI values are approximate and may vary slightly based on the exact screen dimensions.
Is PPI the Same as DPI?
While often used interchangeably, PPI and DPI are technically different:
- PPI (Pixels Per Inch) refers to digital display pixel density
- DPI (Dots Per Inch) traditionally refers to printer resolution
For digital displays and screen calculations, PPI is the correct term, though many manufacturers use DPI in their marketing materials.
Is Our Tool Accurate?
Yes! Our PPI calculator uses the industry-standard mathematical formula for determining pixel density. The tool provides accurate calculations based on the information you input, including:
- Precise PPI measurements
- Accurate dot pitch calculations
- Exact aspect ratio determination
- Total pixel count and megapixel conversion
For maximum accuracy, ensure you enter the exact physical diagonal size and the native resolution of your display.
Try our calculator below to discover your display’s true specifications today!