What Is My Screen Resolution?
This page reads your screen as the browser sees it: the resolution in real (physical) pixels, the resolution after scaling, the size of this window, the aspect ratio and the common name of the resolution, plus the refresh rate, color depth and HDR support. Enter the diagonal of your screen to get its pixel density (PPI).
| Resolution (real pixels) | β |
|---|---|
| Resolution with scaling (CSS) | β |
| Pixel ratio (scaling) | β |
| Browser window | β |
| Available area (without taskbar) | β |
| Aspect ratio | β |
| Resolution name | β |
| Refresh rate | β |
| Color depth | β |
| Color gamut | β |
| HDR | β |
| Orientation | β |
| Touchscreen | β |
How to use it
- Open this page on the screen you want to check; the values appear at once.
- If you use several monitors, drag the window to the other one: the values update.
- Type the screen diagonal in inches to see the PPI, and copy everything with one click.
Frequently asked questions
Why is the resolution shown smaller than my monitor's?
Operating systems scale the screen so text is not tiny: at 150% scaling, a 2560 × 1440 monitor behaves like 1707 × 960. The first line shows the real pixels (scaled resolution × pixel ratio); the CSS resolution is what websites see.
Is the browser zoom included?
Yes. Zooming the page in or out changes the pixel ratio the browser reports. Reset the zoom (Ctrl+0 or Cmd+0) before reading the values.
What is PPI?
Pixels per inch: how many pixels fit in one inch of the screen. It is the diagonal in pixels divided by the diagonal in inches. A 24-inch Full HD monitor has about 92 PPI; phones often pass 400.
⚡ Refresh Rate Test (Hz)
🖱️ Mouse Test
⏱️ Reaction Time Test
🔊 Decibel Meter
📏 Online Ruler (Actual Size)
🥁 Tap Tempo – BPM Counter
🖥️ Dead Pixel Test
🎹 Keyboard Test