Few weeks ago i build a chrome extension for converting temperatures in fahrneheit, celsius, rankine and kelvin.
If you don’t know what chrome is, chrome is a web brwoser that you should get if you are not already using it. Check out http://chrome.google.com/ .
I like chrome because it is fast, it is clean, and has a large browsing window because it lacks a title bar and other useless bars that other browser have.
The extension i talk about can be found here: https://chrome.google.com/extensions/detail/lemcbjbchpigjiilhccnpohhngmooimd
To be able to use extensions, you have to get the beta version of google chrome 4.0 .