The window outerWidth property is used for returning the outer width of the browser window. It includes all the interface elements such as toolbars, scrollbars, etc. It is a read-only property and returns a number which represents the width of the browser’s window in pixels.
Syntax
window.outerWidthReturn Values:
It returns a numeric value that represents the browser's window width, includes all interface elements, in pixels
Example: This example shows the use of "window.outerWidth" property.
<!DOCTYPE html>
<html>
<head>
<title>
Window outerWidth Property in HTML
</title>
<style>
h1 {
color: green;
}
body {
text-align: center;
}
</style>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>Window outerWidth Property</h2>
<p>
For returning the browser window's width,
double click the "Check Width" button:
</p>
<button onclick="pixel()">
Check Width
</button>
<p id="outerwidth"></p>
<script>
function pixel() {
let width = window.outerWidth;
document.getElementById("outerwidth").innerHTML =
"Width : " + width;
}
</script>
</body>
</html>
Output:

Supported Browsers
- Google Chrome 1
- Edge 12
- Internet Explorer 9
- Firefox 1
- Opera 9
- Safari 3