Screen.width

The Screen.width read-only property returns the width of the screen in CSS pixels.

Syntax

lWidth = window.screen.width

Example

// Crude way to check that the screen is at least 1024x768
if (window.screen.width >= 1024 && window.screen.height >= 768) {
  // Resolution is 1024x768 or above
}

Notes

Note that not all of the width given by this property may be available to the window itself. When other widgets occupy space that cannot be used by the window object, there is a difference in window.screen.width and window.screen.availWidth. See also screen.height.

Internet Explorer will take into account the zoom setting when reporting the screen width. It will only return the real width of the screen if the zoom is set to 100%.

Specifications

Specification
CSSOM View Module
# dom-screen-width

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariWebView AndroidChrome AndroidFirefox for AndroidOpera AndroidSafari on iOSSamsung Internet
width
Full support
Full support