The Element.clientWidth property is zero for elements with no CSS or inline layout boxes, otherwise it's the inner width of an element in pixels. It includes padding but not the vertical scrollbar (if present, if rendered), border or margin.

This property will round the value to an integer. If you need a fractional value, use element.getBoundingClientRect().


var intElemClientWidth = element.clientWidth;

intElemClientWidth is an integer corresponding to the clientWidth of element in pixels. clientWidth is read–only.





Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'clientWidth' in that specification.
Working Draft  


clientWidth was first introduced in the MS IE DHTML object model.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) (Yes) 6 (Yes) (Yes)
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? ? (Yes) (Yes) ? ? ? (Yes)

See also