A Dictionary of Units Measurements - Provides a summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), together with the appropriate conversion factors needed to change them into a 'standard' unit of the International System of Units (SI).
megaConverter - An ever-growing set of weights, measures and units conversion/calculation modules. megaConverters allow users to discover things like how many seconds old they are, the difference between a gallon in the U.S. and a gallon in the UK, how many nanometers in an inch, how many quarts in a chaldron, and what a nebuchadnezzar is.
Online Conversion - Convert just about anything online: Over 8,100 conversions and calculators.
Technical and Safety Data - These links provide quick answers for conversions, cylinder specifications, and recommendations about using compressed gases safely.
U.S. Metric Association (USMA) - A national non-profit organization that advocates U.S. conversion to the International System of Units, also called the modern metric system.
KWSnet is an Internet subject directory providing special attention to U.S. national and international news, the arts, computing, culture, environment, law, literature, media, politics, science and technology. Based in San Francisco, California, KWSnet contains over 150,000 annotated links to resources worldwide. Use Search KWSnet, located at the top of each page, to search within this site. Use Ctrl-F (Windows) or ⌘-F (Mac) to search within individual pages.