Conversion of Units . Online Metric Converter from Science Made Simple. Handy, easy to use conversions for most of the common units. A nice feature is that you can work with only the common units, or you can expand the menus to include less-familar units as well. It is a service of Entisoft Units , a shareware program for units conversion.
Site includes a huge listing of units with standard equivalents.
A fancy commercial site, featuring a collection of conversion modules which instantly convert between units of measurement. Metric Typographic Units . A thorough discussion of traditional and metric units in typesetting and page layout, by Markus Kuhn. Historic Units 15 USC Chapter 6 . Posted by the Cornell University Law School, this is the law concerning weights and measures in the United States.