Instant hardware diagnostic reading your native display resolution, physical pixel grid, viewport scaling factor, and color bit depth.
| Standard Name | Pixel Dimensions | Aspect Ratio | Total Megapixels |
|---|---|---|---|
| 1080p (Full HD / FHD) | 1920 × 1080 | 16:9 | 2.07 MP |
| 1440p (Quad HD / 2K QHD) | 2560 × 1440 | 16:9 | 3.69 MP (+78% over 1080p) |
| UW-QHD (Ultrawide 1440p) | 3440 × 1440 | 21:9 | 4.95 MP |
| 4K UHD (2160p) | 3840 × 2160 | 16:9 | 8.29 MP (4x 1080p) |
Calculate Pixels Per Inch and dot pitch for any monitor size.
Calculate exact center coordinates with sub-pixel crosshair alignment.
Sub-frame monitor refresh rate test to verify native panel frequency.
Technical answers to common hardware, refresh rate, and browser diagnostic questions.
Operating systems apply a display scale factor (Device Pixel Ratio / DPR) to high-density 4K displays (e.g. 200% scaling). The browser's CSS viewport reads 1920x1080, but multiplied by a DPR of 2.0, your physical hardware renders 3840x2160 pixels.
Screen Resolution is the total physical pixel grid of your hardware monitor (e.g. 2560x1440). Viewport is the active browser window dimensions. Screen Size in inches is the physical diagonal measurement of the glass.