I found a great tool recently and I wanted to share. A client of mine asked me to set my type sizes in my css as ems for this project and I usually work in pixels. A quick Google search later brought me to this gem – http://pxtoem.com/ It is fast and easy px to em conversion and I’m finding it to be incredibly useful. I hope you do too
p.s. It will even write CSS for you! Check it out http://pxtoem.com/
In metal type, the em was the height of the metal body from which the letter rises. (Measurement c in this illustration) wikipedia
