What is My Screen Resolution?
Instantly detect your native screen resolution, browser viewport size, display scaling, and calculate your monitor's physical dimensions.
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Frequently Asked Questions
To find out exactly screen resolution for your laptop, mobile, tv or any device, simply look at the detection tool at the top of this page. Screen resolution is the total number of physical pixels your monitor can display, usually expressed as width by height (e.g., 1920 × 1080). Our tool instantly calculates both your logical (CSS) pixels and your true physical native hardware pixels.
Screen Resolution is the total number of physical pixels your monitor has. Viewport Size is the inner dimensions of your browser window where websites are rendered. If your browser is not full screen, or if you have toolbars open, your viewport will be smaller than your screen resolution.
This is usually caused by UI Scaling (also known as DPI scaling). Operating systems like Windows and macOS scale up interfaces on high-resolution monitors so text isn't too small to read. Our tool detects both your Logical (scaled) resolution and your Native (physical) resolution.
Browsers cannot automatically detect the physical size of your monitor for privacy reasons. However, if you know the diagonal size (e.g., 27 inches), you can enter it into our PPI Calculator on this page to instantly determine your exact physical width and height.