I know this was posted months ago, but in case anybody sees it:

Being Norwegian and user of the metric system, I cannot manage this WOE without http://www.convert-me.com

Weight and Mass Weight measures, including metric, Avoirdupois (U.S.), Troy, Apothecaries, old Russian, Japanese, Thai, ancient Greek and Roman.
Distance and Length Measures of length, including metric, British and American, old Russian, Japanese, Thai, ancient Greek and Roman, nautical, typographical and astronomical.
Capacity and Volume Liquid and dry measures of volume, including metric, U.S., British Imperial, Japanese, Thai, old Russian and cooking.

Just great for measures ! Just put in the measure you have and it will convert til to every thinkable measure.... try it !