What is my screen resolution? This checker answers immediately — the moment this page loaded, it read your display. No clicking, no installing anything.
Reading your screen\u2026
What the numbers mean
- Screen resolution is the total pixels your display shows, written as width × height — for example 1920 × 1080.
- Aspect ratio is the shape of the screen in simple terms, like 16:9 for most laptops and monitors or 19.5:9 on many phones.
- Available area is your screen minus the taskbar or dock.
- Browser window (inside) is the space web pages actually get — always smaller than the full screen.
- Device pixel ratio tells how many physical pixels draw one on-screen pixel; 2 or 3 is normal on modern phones and Retina displays.
Common screen resolutions
| Resolution | Name | Aspect ratio |
|---|---|---|
| 1366 × 768 | HD (typical budget laptop) | 16:9 |
| 1920 × 1080 | Full HD | 16:9 |
| 2560 × 1440 | QHD | 16:9 |
| 3840 × 2160 | 4K UHD | 16:9 |
| 3440 × 1440 | Ultrawide QHD | 21:9 |
Frequently asked questions
Why does my window size differ from my screen size?
Your browser window rarely fills the whole display, and toolbars take space too — the checker shows both numbers.
Does this work on phones and tablets?
Yes. Open this page on the device and the checker reads that device’s screen.
Is any data about my device collected?
No. Your screen details are read and shown in your browser only.
Related tools: Image Resizer, CSS Gradient Generator, Color Palette Generator.
