Sicyon Unit Converter is all you would ever need from units converter. It
offers you great versatility of conversions with more than 400 units of
measurement in 63 categories.
I strongly suspect that's the best unit converter for Windows there is.
Sicyon Unit Converter is distributed as freeware. Go to Download page or click on the screenshot..
Screenshot of Sicyon Unit Converter - integrated mode.
(click on the screenshot for direct download)
Sicyon Unit Converter features:
Sicyon Unit Converter is integrated in Sicyon calculator, so on the top of all the sophisticated features of the stand-alone version, you can covert units in-line.
Special acknowledgments to Benny Tiefenbrunner for helping me improve the unit converter.