Window innerWidth and innerHeight Properties

Window Object Reference Window Object

Example

Get the window's height and width: (NOT including toolbars/scrollbars):

var w = window.innerWidth;
var h = window.innerHeight;

Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The innerWidth property returns the inner width of a window's content area.

The innerHeight property returns the inner height of a window's content area.

These properties are read-only.

Tip: Use the outerWidth and outerHeight properties to get the width/height with toolbars/scrollbars.


Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
innerWidth 1.0 9.0 1.0 3.0  9.0
innerHeight 1.0 9.0 1.0 3.0 9.0

Note: For IE8 and earlier, you can use the clientWidth and clientHeight properties (See "More Examples" below).


Syntax

window.innerWidth
window.innerHeight

Technical Details

Return Value: A Number, representing the inner width and/or the inner height of the browser window's content area, in pixels

Examples

More Examples

Example

A cross-browser solution (using clientWidth and clientHeight for IE8 and earlier):

var w = window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth;

var h = window.innerHeight
|| document.documentElement.clientHeight
|| document.body.clientHeight;

Try it yourself »

Example

A demonstration of innerWidth, innerHeight, outerWidth and outerHeight in one example:

var txt = "";
txt += "<p>innerWidth: " + window.innerWidth + "</p>";
txt += "<p>innerHeight: " + window.innerHeight + "</p>";
txt += "<p>outerWidth: " + window.outerWidth + "</p>";
txt += "<p>outerHeight: " + window.outerHeight + "</p>";

Try it yourself »

Window Object Reference Window Object

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