Arguments
includeMargin
A Boolean indicating whether to include the element's margin in the calculation.
Description: Get the current computed width for the first element in the set of matched elements, including padding and border.
If includeMargin is omitted or false, the padding and border are included in the calculation; if true, the margin is also included.
This method is not applicable to window and document objects; for these, use .width() instead.

Example
Get the outerWidth of a paragraph.
var p = $("p:first");
$("p:last").text( "outerWidth:" + p.outerWidth() +
" , outerWidth(true):" + p.outerWidth(true) );
Full source:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<style>p { margin:10px;padding:5px;border:2px solid #666; } </style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function(){
var p = $("p:first");
$("p:last").text( "outerWidth:" + p.outerWidth() +
" , outerWidth(true):" + p.outerWidth(true) );
});
</script>
</head>
<body>
<p>Hello</p><p></p>
</body>
</html>
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