Now this is good: pxtoem.com
I found the link to it on Dave White's blog and its pretty damn groovy. It is hailed as “px to em conversion made simple”. Type a base font size in pixels, and the tool will produce a complete pixel to em conversion table, making elastic Web design much easier to produce.
I like those apples :o)
d25f73f6-f7fb-4de0-aa8b-20f37985619f|2|5.0