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copied!<p>One more version. No DOM manipulation needed, all characters in image file name supported.</p> <p><strong>UPDATE</strong> See an alternative version below.</p> <pre><code>var image_url = $('#something').css('background-image'), image; // Remove url() or in case of Chrome url("") image_url = image_url.match(/^url\("?(.+?)"?\)$/); if (image_url[1]) { image_url = image_url[1]; image = new Image(); // just in case it is not already loaded $(image).load(function () { alert(image.width + 'x' + image.height); }); image.src = image_url; } </code></pre> <hr> <h2>2018 solution</h2> <p>This answer is still receiving upvotes 5 years after. I thought I will share a more complete solution. This builds on top of original code and wraps it into a function. It uses jQuery Deferred Object, adds error handling and updates RegExp to match 3 possible cases: <code>url()</code>, <code>url("")</code> and <code>url('')</code>. It also works on jQuery 1 to 3.</p> <pre><code>var getBackgroundImageSize = function(el) { var imageUrl = $(el).css('background-image').match(/^url\(["']?(.+?)["']?\)$/); var dfd = new $.Deferred(); if (imageUrl) { var image = new Image(); image.onload = dfd.resolve; image.onerror = dfd.reject; image.src = imageUrl[1]; } else { dfd.reject(); } return dfd.then(function() { return { width: this.width, height: this.height }; }); }; // // Usage // getBackgroundImageSize(jQuery('#mydiv')) .then(function(size) { console.log('Image size is', size.width, size.height); }) .fail(function() { console.log('Could not get size because could not load image'); }); </code></pre>

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