This is an update to my earlier post Pixel to EM converter which focused on the online utility to convert ‘pixels’ to ‘ems’. I have updated the utility to support more units and it now can convert between any of the following units:
Pixel
EM
Point
Percent
You can also convert a CSS file contain any of all of the above units/formats to any of the desired format. I have also moved the utility to a more descriptive domain pixelconverter.kleptomac.com

[...] Pixel Converter [...]
;howdy. ;i converted a stylesheet from pixels to ems, and it didn’t come out right. i don’t understand how to find my base font size and DPI. !thankS-
Hi,
Its the size you specify for the main Body tag in your css file
ex:
Body {
font-size: “12px”;
}
By default, if you don’t specify anything, its 16px.