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What Is My Screen Resolution?
Your display and system details, detected live in your browser. Resize the window and the values update instantly.
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screen resolution (pixels)
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What these values mean
Screen resolution is the total pixels on your display. Window size is what your browser currently uses. Device pixel ratio shows how many physical pixels make up one CSS pixel — higher on Retina and high-DPI screens. Colour depth is how many bits represent each pixel's colour.
How to change your screen resolution
On Windows: Settings → System → Display → Display resolution. On macOS: System Settings → Displays. Use your monitor's native resolution for the sharpest image.
Frequently asked questions
Why is my resolution different from what I expected?
Display scaling and the device pixel ratio can make the reported CSS resolution differ from the panel's native pixels.
Is any of this data sent anywhere?
No — it's read from your browser and shown only to you.