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What Is My Screen Resolution?
Instantly detect your screen resolution and display size.
Discover your current screen resolution
Screen resolution determines how much content you can display and how sharp it looks. This tool auto-detects your pixel resolution, browser window size and other display info useful for web development.
Why it's useful
- Responsive design — check what resolution your visitors use
- CSS debugging — confirm exact resolution when testing breakpoints
Test your site at different resolutions with our Screen Resolution Simulator.
FAQ
What's the most common screen resolution?
1920×1080 (Full HD) is most common on desktop (~22%). On mobile, 360×800 and 390×844 (iPhone) dominate. Always think "mobile first" — over 60% of web traffic is mobile.
