Convert PX to EM easily

Converting Pixels to Ems is not always easy. Most front end developers like using pixels because it's easier to get design cut pixel perfect in html. But using pixels in your css can have a few disadvantages.

Styles sheets become harder to maintain if the body font size changes for example. The developer will end up having to change every instance of pixel sized fonts. Also using pixel sizes does not improve accessibility for end users. For example if end users are using hot keys to increase font sizes only relative sized fonts will increase which means ems or percentage sizes.

So here is an online tool that will help converting your pixels to ems pxtoem.com

You need to know your starting base font size which in most cases is 16px.